mediastinal lymph node

description: A lymph node that is part of a mediastinum. Each consists of several lymph node groups, especially along the trachea (5 groups), along the esophagus and between the lung and the diaphragm. In the mediastinal lymph nodes arises lymphatic ducts, which draines the lymph to the left subclavian vein (to the venous angle in the confluence of the subclavian and deep jugular veins). The mediastinal lymph nodes along the esophagus are in tight connection with the abdominal lymph nodes along the esophagus and the stomach. That fact facilitates spreading of tumors cells through these lymphatics in cases of cancers of the stomach and particularly of the esophagus. Through the mediastinum, the main lymphatic drainage from the abdominal organs goes via the thoracic duct (ductus thoracicus), which drains majority of the lymph from the abdomen to the above mentioned left venous angle.


cranial deep lymph node

category: biolink:GrossAnatomicalStructure biolink:AnatomicalEntity biolink:PhysicalEssence biolink:OrganismalEntity biolink:SubjectOfInvestigation biolink:BiologicalEntity biolink:ThingWithTaxon biolink:NamedThing biolink:PhysicalEssenceOrOccurrent


lymph node of upper limb

description: A lymph node that is part of a forelimb.


anterior cervical lymph node

description: The anterior cervical lymph nodes are a group of nodes found on the anterior part of the neck.


supraclavicular lymph node

description: A lymph node which is located above the clavicle.


name: proximal epiphysis of distal phalanx of manual digit 1

description: A proximal epiphysis that is part of a distal phalanx of manual digit 1 [Automatically generated definition].


host cell Golgi apparatus

category: biolink:CellularComponent biolink:AnatomicalEntity biolink:PhysicalEssence biolink:OrganismalEntity biolink:SubjectOfInvestigation biolink:BiologicalEntity biolink:ThingWithTaxon biolink:NamedThing biolink:PhysicalEssenceOrOccurrent

description: A compound membranous cytoplasmic organelle of eukaryotic host cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack.


articular capsule of hip joint

description: An articular capsule that is part of the hip joint.


autonomic nerve

category: biolink:AnatomicalEntity biolink:PhysicalEssence biolink:OrganismalEntity biolink:SubjectOfInvestigation biolink:BiologicalEntity biolink:ThingWithTaxon biolink:NamedThing biolink:PhysicalEssenceOrOccurrent

description: The autonomic nerve is a small nerve which carries postganglionic sympathetic and parasympathetic neurons from the zygomaticotemporal nerve; a branch of the maxillary nerve, to the lacrimal nerve; a branch of the ophthalmic nerve. These neurons derive from the superior cervical ganglion and the pterygopalatine ganglion respectively. They will travel to the lacrimal gland via the lacrimal nerve. Parasympathetic will induce lacrimation and vice versa.


valve of inferior vena cava

description: The semicircular fold of endocardium located on the right atrium at the point of attachment of the inferior vena cava; during development this valve helps direct the flow of oxygen-rich blood through the right atrium into the left cardiac atrium via the foramen ovale (preventing blood flowing into the right ventricle).


parametrium

description: The subserous connective tissue of the pelvic floor of the supracervical portion of the uterus. The parametrium extends laterally between the layers of the broad ligament.


mesometrium

description: A mesentery that is part of a uterus [Automatically generated definition].


2-furoate ester

Any carboxylic ester where the carboxylic acid component is 2-furoic acid.


fundus of urinary bladder

description: The base or posterior surface of the urinary bladder contains the trigone of the bladder and the outlet where urine empties through the internal urethral orifice.


MHC class Ib protein complex

description: A transmembrane protein complex composed of a MHC class Ib alpha chain and, in most cases, an invariant beta2-microglobin chain, and with or without a bound peptide or lipid antigen. Class Ib here refers to non-classical class I molecules, such as those of the CD1 or HLA-E gene families.


tertiary carboxamide

A carboxamide resulting from the formal condensation of a carboxylic acid with a secondary amine; formula RC(=O)NHR(1)R(2).


tolvaptan

A member of the class of benzazepines that is 2,3,4,5-tetrahydro-1H-1-benzazepine substituted by 2-methyl-4-(2-methylbenzamido)benzoyl, hydroxy, and chloro groups at positions 1, 5, and 7, respectively.


catecholamine

4-(2-Aminoethyl)pyrocatechol [4-(2-aminoethyl)benzene-1,2-diol] and derivatives formed by substitution.


(±)-adrenaline

A catecholamine in which the aminoethyl side-chain is hydroxy-substituted at C-1 and methylated on nitrogen.


noradrenaline

A catecholamine in which C-1 of the aminoethyl side-chain is hydroxy-substituted.


chromoplast inner membrane

description: The inner, i.e. lumen-facing, lipid bilayer of the chromoplast envelope; also faces the chromoplast stroma.


Costochondral Joint 1

description: The first hyaline cartilaginous joint between the ribs and costal cartilage.


principal vein of forelimb

description: A prinicipal vein of limb that is part of a forelimb.


rixosome complex

description: A conserved RNA endonuclease complex required for spreading and epigenetic inheritance of heterochromatin. The rixosome contains six unique subunits: three structural subunits (Crb3, Rix1, and Ipi1) which form the core of the complex, and three catalytic subunits (the endonuclease Las1, the polynucleotide kinase Grc3, and the AAA-type ATPase Mdn1), which are involved in the processing of ribosomal RNA precursors. All subunits are essential for viability and are conserved from yeast to mammals, including humans.


Peripheral Blood Vessel

description: A blood vessel located in the following sites: upper extremities, lower extremities, lower abdomen, head, or neck.


flexor sesamoid

description: A sesamoid bone located near or in the flexor musculature of a joint.


CYSTEINE

A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3.


nephron tubule basement membrane

description: A basement membrane that is part of a nephron tubule.


left pulmonary vein

description: Vein that drains left lung and returns blood to the heart.


right pulmonary vein

description: Vein that drains right lung and returns blood to the heart.


hydroxy fatty acid

Any fatty acid carrying one or more hydroxy substituents.


hydroxybutyric acid

Any compound comprising a butyric acid core carrying at least one hydroxy substituent.


insect external sensillum

description: Sensillum which is embedded in the body wall and has a specific cuticular structure involved in the transduction of some sensory signal as a part.


insect chaeta

description: A sensillum with a long, unicellular, setiform outgrowth that is strongly chitinized.


insect eo-type sensillum

description: Sensillum with innervated external cuticular sensory structure consisting of one or more bipolar sensory neurons, and 3 support cells: a trichogen cell which makes the external cuticular sensory structure, a thecogen cell which makes the socket that holds the base of the external sensory structure and a tormogen cell which makes the cuticular matrix (cap) at the tip of the innervating dendrite(s).


secondary cell wall

description: A plant cell wall that is no longer able to expand and so does not permit growth. Secondary cell walls contain less pectin that primary cell walls. The secondary cell is mostly composed of cellulose and is strengthened with lignin.


name: extrinsic component of periplasmic side of plasma membrane

description: The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its periplasmic surface, but not integrated into the hydrophobic region.


DL-TRYPTOPHAN

An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3.


name: Proximal Interphalangeal Joint 4 of the Hand

description: A ginglymoid (hinge) synovial joint within the fourth digit of the hand connecting the proximal and middle phalanges.


hippocampal mossy fiber to CA3 synapse

description: One of the giant synapses that form between the mossy fiber axons of dentate gyrus granule cells and the large complex spines of CA3 pyramidal cells. It consists of a giant bouton known as the mossy fiber expansion, synapsed to the complex, multiheaded spine (thorny excresence) of a CA3 pyramidal cell.


left caudal basal body

description: Any ciliary basal body that is part of a left caudal flagellum found in Giardia species (trophozoite stage).


conjunctival vein

description: A vein that is part of a conjunctiva.


portion of cartilage tissue in tibia

description: Cartilage pertaining to the tibia.


A phosphate ion that is the conjugate base of hydrogenphosphate.


aminophospholipid

A phospholipid that contains one or more amino groups.


adenyl nucleotide

A  nucleotide having adenine as the base.


nucleoside 5'-phosphate

A ribosyl or deoxyribosyl derivative of a pyrimidine or purine base in which C-5 of the ribose ring is mono-, di-, tri- or tetra-phosphorylated.


nucleoside phosphate

A nucleobase-containing molecular entity that is a nucleoside in which one or more of the sugar hydroxy groups has been converted into a mono- or poly-phosphate. The term includes both nucleotides and non-nucleotide nucleoside phosphates.


COCARBOXYLASE

A thiamine phosphate that is thiamine(1+) in which the hydroxy group has been replaced by a diphosphate group. It is the active form of vitamin B1 and an essential cofactor for enzymes in key metabolic pathways.


nucleotide

A nucleotide is a nucleoside phosphate resulting from the condensation of the 3 or 5 hydroxy group of a nucleoside with phosphoric acid.


phospho sugar

Any monosaccharide containing an alcoholic hydroxy group esterified with phosphoric acid.


thiamine monophosphate

A thiamine phosphate that is thiamin(1+) in which the hydroxy group is replaced by a phosphate group.


thiamine(1+) triphosphate

A thiamine phosphate that is thiamine(1+) in which the hydroxy group is replaced by a triphosphate group. It is found in low amounts in most vertebrate tissues and can phosphorylate certain proteins.


pentose phosphate

Any phospho sugar that is the phosphate derivative of pentose.


phospholipid

A lipid containing phosphoric acid as a mono- or di-ester. The term encompasses phosphatidic acids and phosphoglycerides.


purine nucleotide

Any nucleotide that has a purine nucleobase.


Salivary Gland Tissue

description: Tissue consisting of mucous or serous secreting epithelial tissue, connective tissue, blood vessels, nerves and lymphatic tissue.


lower leg connective tissue

description: A portion of connective tissue that is part of a lower leg [Automatically generated definition].


leptomeninx

description: Pia mater or arachnoid mater.


brain pia mater

description: The fibrous membrane forming the innermost of the three coverings that surrounds the brain within the cranial cavity that is firmly attached to the glial capsule.


forebrain arachnoid mater

description: An arachnoid mater that is part of a forebrain [Automatically generated definition].


telencephalon arachnoid mater

description: An arachnoid mater that is part of a telencephalon.


spinal cord pia mater

description: A pia mater that is part of a spinal cord [Automatically generated definition].


spinal cord arachnoid mater

description: An arachnoid mater that is part of a spinal cord [Automatically generated definition].


hindbrain arachnoid mater

description: An arachnoid mater that is part of a hindbrain [Automatically generated definition].


midbrain pia mater

description: A pia mater that is part of a midbrain [Automatically generated definition].


telencephalon pia mater

description: A pia mater that is part of a telencephalon [Automatically generated definition].


forebrain pia mater

description: A pia mater that is part of a forebrain [Automatically generated definition].


diencephalon pia mater

description: A pia mater that is part of a diencephalon [Automatically generated definition].


diencephalon arachnoid mater

description: An arachnoid mater that is part of a diencephalon [Automatically generated definition].


PYRIDOXINE HYDROCHLORIDE

The hydrochloride salt of pyridoxine.


A member of the class of quinolones that is the amide obtained from formal condensation of the carboxy group of 1-allyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid with the amino group of 2-amino-3-ethyl-1,3,4-thiadizole.


pyrazolone

A member of the class of pyrazoles in which one of the carbons of the pyrazole ring is substituted by an oxo group.


Anterior wall of bladder

description: The anterior aspect of the bladder wall.


pelvic sucking disc

description: An adhesive disk modified from the pelvic fins in, for example, clingfishes (Gobiesocidae), gobies (Gobiidae) and snailfishes (Liparidae).


name: Basilar Membrane of the Membranous Canal of the Cochlea

description: The wall of the cochlear duct, which separates it from the scala tympani. It vibrates in response to sound, exciting the hair cells and supports the organ of Corti.


skin of head

description: A zone of skin that is part of a head [Automatically generated definition].


skin of external ear

description: A zone of skin that is part of a external ear [Automatically generated definition].


Emotional Tear

description: A type of tear produced in response to negative and positive emotions; contains higher amounts of proteins and stress-related hormones in comparison to other tear types.


Structure of subcarinal lymph node

description: A lymph node located in the thoracic cavity between the lungs. It is bordered by the carina of the trachea, lower lobe bronchus on the left and the bronchus intermedius on the right.


Anterior Ulnar Vein

description: A vein that extends along the ulna to the elbow joint.


muscularis mucosa

description: A thin layer of smooth muscle found in most parts of the gastrointestinal tract, located outside the lamina propria mucosae and separating it from the submucosa[WP].


Hematopoietic and Lymphatic System Part

description: Any component of the system of organs and tissues, including the bone marrow, spleen, tonsils, and lymph nodes, involved in the production of blood considered together with the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the body.


Para-Spinal Ganglion

description: A sympathetic ganglion located adjacent to the spinal column.


Metacarpophalangeal Joint 5

description: A condyloid synovial joint within the fifth digit of the hand connecting the metacarpal to the proximal phalanx.


Neuroectodermal Cell

category: biolink:Cell biolink:AnatomicalEntity biolink:PhysicalEssence biolink:OrganismalEntity biolink:SubjectOfInvestigation biolink:BiologicalEntity biolink:ThingWithTaxon biolink:NamedThing biolink:PhysicalEssenceOrOccurrent

description: An embryonic cell on the dorsal surface of the early vertebrate embryo that gives rise to the cells of the nervous system


aorta

description: The main trunk of the systemic arterial system that carries blood from the heart to all the organs and other structures of the body, bringing oxygenated blood to all parts of the body in the systemic circulation.


adrenal tissue

description: Tissue that is part of some adrenal gland.


endocardium of right ventricle

description: Any endocardium that is part of the right ventricle of the heart.


sympathetic ganglion

description: A ganglion of the sympathetic nervous system. Examples: paravertebral and the prevertebral ganglia, which include the sympathetic chain ganglia, the superior, middle, and inferior cervical ganglia, and the aorticorenal, celiac, and stellate ganglia.


Gastric Curvature Lymph Node

description: A lymph node that is located between the two layers of the greater omentum, either superiorly along the cardiac half of the lesser curvature of the stomach or inferiorly along the pyloric half of the greater curvature of the stomach.


tissue

description: Multicellular anatomical structure that consists of many cells of one or a few types, arranged in an extracellular matrix such that their long-range organisation is at least partly a repetition of their short-range organisation.


Parapharyngeal Lymph Node

description: Any lymph node located in the potential space of the neck, which is bounded superiorly by the base of the skull, inferiorly by the greater cornu of the hyoid bone, anteriorly by the investing fascia of the deep cervical fascia covering the medial pterygoid muscle, posteriorly by the prevertebral layer of the deep cervical fascia, medially by the middle (pretracheal) layer of the deep cervical fascia, and laterally by the investing fascia of the deep cervical fascia covering the deep lobe of the parotid.


synarthrosis

description: A synarthrosis is a type of joint which permits very little or no movement under normal conditions. Most synarthrosis joints are fibrous. Suture joints and synchondroses are synarthroses.


laryngeal cartilage

description: The cartilaginous structures that support the larynx.


Structure of profunda femoris vein

description: A vein located in the upper thigh that connects, through tributaries, to the popliteal and inferior gluteal veins, and joins the superficial femoral vein at the groin to form the common femoral vein.


Interphalangeal Joint 1

description: A ginglymoid (hinge) synovial joint within the first digit of the hand or foot connecting the proximal and distal phalanges.


spleen trabecular vein

description: One of the veins that feed the splenic vein.


axilla skin

description: A zone of skin that is part of a axilla.


Structure of suprarenal aorta

description: The portion of the abdominal aorta superior to the renal arteries.


obturator nerve

description: The obturator nerve arises from the ventral divisions of the second, third, and fourth lumbar nerves; the branch from the third is the largest, while that from the second is often very small.


brachial vein

description: A vein that accompanies the brachial artery between the shoulder and the elbow.


cuneiform cartilage

description: The cuneiform cartilages of the larynx are two small, elongated pieces of yellow elastic cartilage, placed one on either side, in the aryepiglottic fold, where they give rise to small whitish elevations on the surface of the mucous membrane, just in front of the arytenoid cartilages.


Posterior wall of urinary bladder

description: The posterior aspect of the bladder wall.


Tibiotarsal Joint

description: The joint connecting the lower part of the tibia with the upper part of the tarsus bones, specifically articulating with the talus bone.


Neck Lymph Node Boundary Level VII

description: The following anatomical structures define the neck lymph node boundary for level VII: Superior: suprasternal notch; inferior: innominate artery; anterior (medial): sternum; posterior (lateral): trachea, esophagus, and prevertebral fascia. (AJCC 8th ed.)


short bone

description: Short bones are designated as those bones that are as wide as they are long. Their primary function is to provide support and stability with little to no movement. They are one of five types of bones: long, short, flat, irregular and sesamoid. Examples of these bones include the tarsals in the foot and the carpals in the hand.


Wall of anterior cranial fossa

description: The portion of the skull that is formed laterally by the orbital plates of the frontal bone, medially by the cribriform palate and crista galli of the ethmoid bone, and posteriorly by the planum sphenoidale and lesser wings of the sphenoid bone.


sacrococcygeal symphysis

description: The sacrococcygeal symphysis (sacrococcygeal articulation, articulation of the sacrum and coccyx) is an amphiarthrodial joint, formed between the oval surface at the apex of the sacrum, and the base of the coccyx. It is a slightly moveable joint which is frequently, partially or completely, obliterated in old age, homologous with the joints between the bodies of the vertebrae.


posterior longitudinal ligament

description: A long fibrous band extending along the vertebral canal from C2 to the sacrum that interconnects the posterior surface of the vertebrae. The ligament narrows as it passes between the pedicle and widens at the intervertebral disc space to blend with the intervertebral fibrocartilage.


internal jugular vein

description: One of two jugular veins that collect the blood from the brain, the superficial parts of the face, and the neck. [WP,unvetted].


Posterior Portion of the Urethra

description: The portion of the urethra that is located on the posterior aspect of the urogenital diaphragm.


coronary sinus

description: The short trunk that recieves most of the cardiac veins carrying the blood from the myocardium and delivers it to the right atrium, with the sinoatrial connection occurring between the inferior vena cava and the atrioventricular orifice.


Peristomal Skin

description: The skin surrounding a stoma and on which the pouching system is placed.


right ureter

description: An ureter that is part of a right side of organism [Automatically generated definition].


Structure of right seminal vesicle

description: The seminal gland that is located to the anatomical right of the bladder.


name: Intrahepatic Portion of the Left Hepatic Duct

description: The section of the left hepatic duct located in the liver.


Subsegmental Bronchus of Right Lung

description: A part the bronchial tree of the right lung, an air passage arising from any segmental bronchus of the right lung and passing to the naturally delimited part of lung segment (subsegment), where it further subdivides into smaller passages.


Septal Vein

description: The paired veins in the frontal lobe and along the septum pellucidum that drain into the internal cerebral veins.


Infrarenal aorta

description: The portion of the abdominal aorta that lies below the kidneys.


Abdominal lymph node group

description: Any lymph node within the abdomen.


Structure of labial gland

description: A round gland located between the mucous membrane and orbicularis oris muscle of the mouth.


Medial Supraclavicular Lymph Node

description: A cervical lymph node located above the medial region of the clavicle.


Embryonic Cell

description: A cell formed in the initial stages of embryonic development, after zygote formation.


Interphalangeal Joint 5 of the Hand

description: A ginglymoid (hinge) synovial joint between the phalanges of the fifth digit of the hand.


axillary nerve

description: The axillary nerve is a nerve of the human body, that comes off the posterior cord of the brachial plexus at the level of the axilla (armpit) and carries nerve fibers from C5 and C6. The axillary nerve travels through the quadrangular space with the posterior circumflex humeral artery and vein. [WP,unvetted].


mesothelium

description: Simple squamous epithelium of mesodermal origin which lines serous membranes. Examples: mesothelium of pleura, mesothelium of peritoneum[FMA]. Wikipedia: The mesothelium is a membrane that forms the lining of several body cavities: the pleura (thoracal cavity), peritoneum (abdominal cavity including the mesentery) and pericardium (heart sac). Mesothelial tissue also surrounds the male internal reproductive organs (the tunica vaginalis testis) and covers the internal reproductive organs of women (the tunica serosa uteri).


male membranous urethra

description: The shortest, least dilatable, and, with the exception of the external orifice, the narrowest part of the male urethral canal located in the deep perineal pouch and lined by pseudostratified columnar epithelium; it extends downward and forward, with a slight anterior concavity, between the apex of the prostate and the bulb of the urethra, perforating the urogenital diaphragm below and behind the pubic symphysis; the membranous portion of the urethra is completely surrounded by the fibers of the sphincter urethrae membranaceae; on either side near its termination are the bulbourethral glands.


Bulbomembranous Urethra

description: A portion of the urethra that extends between the apex of the prostate and the bulb of the corpus spongiosum and lies between the superior layers of the triangular ligament.


Common Ulnar Vein

description: A blood vessel containing deoxygenated blood formed by the joining of the anterior and posterior ulnar veins.


Structure of lunate-triquetrum joint

description: The articulation between the lunate and the triquetral bones in the wrist.


name: Distal Interphalangeal Joint 4 of the Foot

description: A ginglymoid (hinge) synovial joint within the fourth digit of the foot connecting the middle and distal phalanges.


Structure of saphenous nerve

description: A branch of the femoral nerve traveling the length of the leg/hindlimb, which innervates the sartorius and the skin of the medial aspect of the leg/hindlimb from the knee/stifle joint to the metatarsus.


enteric ganglion

description: Either of the two types of ganglia found in the lining of the GI tract: the Myenteric (Auerbach's) plexus and the submucosal (Meissner) plexus, which are both small ganglia connected by thin, unmyelinated nerves.


ocular adnexa

description: The parts of the orbital region that are outside of the the eyeball, including the lacrimal apparatus, the extraocular muscles and the eyelids, eyelashes, eyebrows and the conjunctiva.


name: Distal Interphalangeal Joint 2 of the Foot

description: A ginglymoid (hinge) synovial joint within the second digit of the foot connecting the middle and distal phalanges.


Interphalangeal Joint 1 of the Foot

description: A ginglymoid (hinge) synovial joint within the first digit of the foot connecting the proximal and distal phalanges.


Interphalangeal Joint 5

description: A ginglymoid (hinge) synovial joint between the phalanges of the fifth digit of the hand or foot.


left uterine tube

description: A fallopian tube that is part of a left side of organism [Automatically generated definition].


gravid uterus

description: The uterus in pregnancy.


Cardia Gland

description: Simple tubular or compound racemose type glands located in the region where the esophagus attaches to the stomach which secrete mucus.


Carpometacarpal Joint 1

description: A saddle-shaped synovial joint between the metacarpal of the thumb and the trapezium.


Tibialcrural Artery

description: The blood vessel segment that includes the crural artery and the tibial artery.


Skin of the Outer Canthus of the Eye

description: The integument that covers the outer corner of the eye were the upper and lower eyelids meet.


right cardiac atrium

description: A cardiac atrium that is in the right side of the heart. It receives deoxygenated blood. In mammals, this comes from the superior and inferior vena cava and the coronary sinus, and pumps it into the right ventricle through the tricuspid valve.


Skin structure of buttock

description: The skin or integument covering the buttocks.


Carpometacarpal Joint 4

description: A plane joint between the fourth metacarpal and the hamate.


Postauricular lymph node

description: The lymph nodes located immediately posterior to the ear; also known as the mastoid lymph nodes or the posterior auricular lymph nodes.


Non-Glabrous Skin

description: Hairy skin.


Intrathoracic Lymph Node

description: Any lymph node within the thoracic cavity.


Reflex Tear

description: A type of tear produced in response to irritation from foreign particles, vapors, bright lights, or peppery substances; contains higher amounts of antibodies in comparison to other tear types.


Posterior Cervical Lymph Node

description: A lymph node located in the posterior region of the neck. (NCI)


muscularis mucosae of stomach

description: The thin layer of smooth muscle in the mucosal layer of the stomach that functions to agitate the surface area stomach mucosa by moving the villi back and forth.


name: Neuron, Neuroepithelial Cell, and Supporting Cell of the Nervous System

description: A grouping for all the different types of cells of the nervous system.


Hypophyseal Portal Vein

description: The blood vessel that drains blood from the capillary beds between the hypothalamus and anterior pituitary.


name: Neck Lymph Node Boundary Levels and Sublevels

description: The anatomical structures that define the neck lymph node boundaries.


Neck Lymph Node Boundary Sublevel VA

description: The following anatomical structures define the neck lymph node boundary for sublevel VA: Superior: apex of the convergence of the sternocleidomastoid and trapezius muscles; inferior: horizontal plane defined by the lower border of the cricoid cartilage; anterior (medial): posterior border of the sternocleidomastoid muscle or sensory branches of the cervical plexus; posterior (lateral): anterior border of the trapezius muscle. (AJCC 8th ed.)


ileocolic vein

description: The ileocolic vein is a vein which drains the ileum, colon, and cecum. [WP,unvetted].


Structure of median cephalic vein

description: A vein between the biceps and supinator longus muscle in the forearm that unites with the radial vein to form the cephalic vein.


Skin of chest

description: The integument that covers the chest.


chromaffin paraganglion

description: Small bodies containing chromaffin cells occurring outside of the adrenal medulla, most commonly near the sympathetic ganglia and in organs such as the kidney, liver, heart and gonads.


main bronchus

description: One of two branches of the trachea.


common iliac vein

description: A vein that drains the pelvis and lower limbs into the inferior vena cava.


dorsal metatarsal vein

description: The dorsal metatarsal veins are veins which drain the metatarsus of the foot. [WP,unvetted].


Gastrointestinal Fluid or Secretion

description: Fluids and secretions within the passage leading from the mouth to the anus through the pharynx, esophagus, stomach, and intestine which cause digestion.


lower respiratory tract cartilage

description: A cartilage that is part of a lower respiratory tract [Automatically generated definition].


Tibial Growth Plate

description: A layer of cartilaginous tissue located in the tibia of children and adolescents that separates the epiphysis from the metaphysis and is the site of longitudinal bone growth until skeletal maturity.


posterior external jugular vein

description: A vein that drains the superficial muscles and integument of the upper back portion of the neck into the external jugular vein.


Endocrine Sex Organ

description: The tissue responsible for generating and secreting hormones involved in reproduction. In males, testosterone is produced and secreted from the testes while the female ovaries produce and secrete estrogens and progestrones.


continuous capillary

description: Capillary that has endothelial cells that provide an uninterrupted lining, and only allow small molecules, like water and ions to diffuse through tight junctions which leave gaps of unjoined membrane which are called intercellular clefts.


Embryonic Structure or System

description: Body tissue, region, surface, cavity, fluid, organ, or collection of organs present in, or associated with, an embryo.


Inferior Mediastinal Lymph Node

description: A group of lymph nodes located in the inferior part of the mediastinum.


Skin structure of forearm

description: The integument that covers the forearm.


Retrosacral Lymph Node

description: A lymph node located in the retrosacral region.


sensory ganglion

description: The clusters of neurons in the somatic peripheral nervous system which contain the cell bodies of sensory nerve axons, interneurons and non-neuronal supporting cells.


segmental bronchus

description: The tertiary bronchi (also known as the segmental bronchi) arise from the secondary bronchi. The respiratory epithelium lining their lumen is surrounded by a layer of smooth muscle. This layer is composed of two ribbons of smooth muscle that spiral in opposite directions. The smooth muscle layer is surrounded by irregular plates of hyaline cartilage which help maintain the patency of the airway. Each of the tertiary bronchi serves a specific bronchopulmonary segment. There are 10 tertiary bronchi in the right lung, and eight in the left. The tertiary bronchi get smaller and divide into primary bronchioles. [WP,unvetted].


masseteric vein

description: A plexiform vein accompanying the masseteric artery that empty into the pterygoid venous plexus.


Neck Lymph Node Boundary Sublevel IIA

description: The following anatomical structures define the neck lymph node boundary for sublevel IIA: Superior: skull base; inferior: horizontal plane defined by the inferior border of the hyoid bone; anterior (medial): stylohyoid muscle; posterior (lateral): vertical plane defined by the spinal accessory nerve. (AJCC 8th ed.)


internal mammary vein

description: One of two veins running parallel to their corresponding internal mammary arteries that unite forming one vessel. These veins drain the chest wall into the innominate vein.


Skin Around the Eye

description: The skin surrounding the eye, including the skin of the eyelid.


Proximal Interphalangeal Joint 3

description: A ginglymoid (hinge) synovial joint within the third digit of the hand or foot connecting the proximal and middle phalanges.


nasal cartilage

description: One of the cartilage structures in the nose that provide form and support[WP].


Interosseous Vein

description: One of two deep veins (anterior or posterior) that run parallel to their corresponding artery in the forearm to drain the wrist and hand.


acetabular part of hip bone

description: The acetabulum is a concave surface of the pelvis. The head of the femur meets with the pelvis at the acetabulum, forming the hip joint. There are three bones of the os coxae (hip bone) that come together to form the acetabulum. Contributing a little more than two-fifths of the structure is the ischium, which provides lower and side boundaries to the acetabulum. The ilium forms the upper boundary, providing a little less than two-fifths of the structure of the acetabulum. The rest is formed by the pubis, near the midline. It is bounded by a prominent uneven rim, which is thick and strong above, and serves for the attachment of the acetabular labrum, which reduces its opening, and deepens the surface for formation of the hip joint. At the lower part of the acetabulum is the acetabular notch, which is continuous with a circular depression, the acetabular fossa, at the bottom of the cavity of the acetabulum. The rest of the acetabulum is formed by a curved, crescent-moon shaped surface, the lunate surface, where the joint is made with the head of the femur. Its counterpart in the pectoral girdle is the glenoid fossa.[WP,unvetted].


thymus

description: Anatomical structure of largely lymphoid tissue that functions in cell-mediated immunity by being the site where T cells develop.


Skin Under the Eye

description: The integument that covers the area directly below the eye.


Microanatomic Structure

description: Those anatomic structures that are generally only visible through the use of microscopy.


postcapillary venule

description: The first potion of the venous component of the microcirculation composed of endothelial cells, pericytes, and a basement membrane, which is one of the main sites for the interchange of gas and metabolite molecules between the tissues and the blood.


Upper extremity part

description: Any component of the region of the body that includes the arm, the forearm, and hand.


Metatarsophalangeal Joint 5

description: A condyloid synovial joint within the fifth digit of the foot connecting metatarsal with the proximal phalanx.


Structure of valve of coronary sinus

description: A thin, crescent-shaped fold of the endocardium at the orifice of the coronary sinus into the right atrium.


Structure of epitrochlear lymph node

description: A lymph node located above and adjacent to the elbow.


Colon Lymph Node

description: Any lymph node within the colon.


skin of elbow

description: A zone of skin that is part of a elbow [Automatically generated definition].


left subcostal vein

description: A vein that extends along the bottom of the twelfth rib on the left side of the body.


Interphalangeal Joint 2

description: A ginglymoid (hinge) synovial joint between the phalanges of the second digit of the hand or foot.


Urinary System Part

description: Any component of the organs involved in the creation and excretion of urine.


Portal Vein Bifurcation

description: The portion of the distal end of the main portal vein that branches into the left and right portal veins.


eccrine sweat gland

description: A merocrine, unbranched, unbranched, coiled, tubular gland sweat gland. In humans, distributed over almost all of the body surface, and promote cooling by evaporation of their secretion.


Carpometacarpal Joint 3

description: A plane joint between the third metacarpal and the capitate.


Salivary serous gland

description: Salivary glands that produce and secrete a saliva made up exclusively of a pale-yellow transparent fluid containing amylase.


manual digit 5

description: 5th digit of the manus.


right kidney

description: A kidney that is part of a right side of organism [Automatically generated definition].


thymic vein

description: A vein that drains blood from the thymus.


Suprapubic Skin

description: The skin above the pubic area.


atlanto-axial joint

description: The Atlanto-axial joint is of a complicated nature, comprising no fewer than four distinct joints. There is a pivot articulation between the odontoid process of the axis and the ring formed by the anterior arch and the transverse ligament of the atlas.


pubic symphysis

description: The firm fibrocartilaginous joint in the median plane between the two opposing surfaces of the pubic bones, which are united by an interpubic disc of fibrocartilage as well as the superior and arcuate pubic ligaments.


heart left ventricle

description: A cardiac ventricle that is in the left side of the heart.


Skin Fluid or Secretion

description: Secretions of the skin.


crista ampullaris

description: The crista ampullaris is the sensory organ of rotation located in the semicircular canal of the inner ear. The function of the crista ampullaris is to sense angular acceleration and deceleration.


lingual nerve

description: The lingual nerve is a branch of the mandibular nerve (CN V3), itself a branch of the trigeminal nerve, which supplies sensory innervation to the tongue. It also carries fibers from the facial nerve, which return taste information from the anterior two thirds of the tongue.


saccule of membranous labyrinth

description: The smaller of the two otolith organs in the vestibule.


posterior tibial vein

description: A vein of the lower limb carries blood from the posterior compartment and plantar surface of the foot to the popliteal vein which it forms when it joins with the anterior tibial vein. Like most deep veins, the posterior tibial vein is accompanied by an artery of the same name, the posterior tibial artery, along its course. [WP,unvetted].


skin of limb

description: A zone of skin that is part of a limb [Automatically generated definition].


Structure of parotid lymph node

description: A lymph node located close to, on, or within the parotid gland.


Lateral Ligament of the Liver

description: Either of the two triangular ligaments (left or right) extending from the diaphragm to the liver.


Seromucous Salivary Gland

description: A gland of the mouth that produces both serous fluid and mucous.


lacrimal nerve

description: The lacrimal nerve is the smallest of the three branches of the ophthalmic division of the trigeminal nerve.


Medial meniscus structure

description: A semicircular meniscus located towards the inner aspect of the knee joint.


meningeal dura mater

description: The inner layer of the dura mater surrounding the brain. It is mostly fused with the outer layer, the endocranium that is adherent to the inner aspect of the cranial bones. These two layers form the dura mater. The latter covers and protects the brain and the spinal cord.


Interphalangeal Joint 4 of the Foot

description: A ginglymoid (hinge) synovial joint between the phalanges of the fourth digit of the foot.


tonsil crypt

description: Tonsils consist of an extensive system of crypts, which result in a large internal surface. The tonsils contain four lymphoid compartments that influence immune functions, namely the reticular crypt epithelium, the extrafollicular area, the mantle zones of lymphoid follicles, and the follicular germinal centers. In human palatine tonsils, the very first part exposed to the outside environment is tonsillar epithelium.


broad ligament of uterus

description: A broad fold of peritoneum that extends from the side of the uterus to the wall of the pelvis.


Posterior Ulnar Vein

description: A vein that ascends on the posterior surface of the ulnar side of the forearm to drain the palm of the hand. The posterior ulnar vein either unites with the anterior ulnar vein to form the common ulnar vein or with the median basilic vein to form the basilic vein.


Nearest Joint

description: The anatomical joint in closest proximity to the entity or object of interest.


name: Proximal Interphalangeal Joint 5 of the Foot

description: A ginglymoid (hinge) synovial joint within the fifth digit of the foot connecting the proximal and middle phalanges.


Polyovular Follicle

description: An ovarian follicle that contains more than one oocyte.


saphenous vein

description: Either of two main superficial veins of the leg, one larger than the other, that begin at the foot.


Autonomic Nervous System Part

description: Any component of the sympathetic or parasympathetic nervous system.


Lymph Node of Inguinal Region or Leg

description: Any lymph node that is located in the inguinal region or in either leg.


Metatarsophalangeal Joint 2

description: A condyloid synovial joint within the second digit of the foot connecting metatarsal with the proximal phalanx.


supraorbital vein

description: The supraorbital vein begins on the forehead where it communicates with the frontal branch of the superficial temporal vein. It runs downward superficial to the Frontalis muscle, and joins the frontal vein at the medial angle of the orbit to form the angular vein. Previous to its junction with the frontal vein, it sends through the supraorbital notch into the orbit a branch which communicates with the ophthalmic vein; as this vessel passes through the notch, it receives the frontal diploic vein through a foramen at the bottom of the notch. The areas drained by this vessel are the forehead, eyebrow and upper eyelid. [WP,unvetted].


Common femoral vein

description: A vein that accompanies the common femoral artery and is formed by the confluence of the femoral vein and the deep femoral vein.


temporal vein

description: Any of the veins draining the temporal region.


hepatic duct

description: Any portion of the ducts that carry bile from the liver to the common bile duct. This may include both intrahapetic components (parts of left and right hepatic ducts) and extrahapetic components (common hepatic duct, plus hilar portion).


Musculoskeletal System Part

description: Any component of the system of muscles, tendons, ligaments, bones, joints and associated tissues that move the body and maintain its form.


Anterior Portion of the Urethra

description: The portion of the urethra that extends from the meatus to the membranous urethra.


Capitate-Lunate Joint

description: The articulation of the capitate and lunate bones in the wrist.


Skin of the Infrascapular Region

description: The integument that covers the region of the back, lateral to the vertebral region and below the scapula.


ophthalmic nerve

description: The sensory nerve subdivision of the trigeminal nerve that transmits sensory information from the orbit and its contents, the nasal cavity and the skin of the nose and forehead.


Proximal Interphalangeal Joint 4

description: A ginglymoid (hinge) synovial joint within the fourth digit of the hand or foot connecting the proximal and middle phalanges.


limb segment

description: A major subdivision of a mature or developing limb, including both skeletal elements (or the mesenchyme that gives rise to the skeletal elements) and associated tissues, such as muscle, connective tissue, integument. Examples: autopod region, zeugopod region, stylopod region, metapodial region, arm region. Excludes the limb girdles.


deep middle cerebral vein

description: The blood vessel that receives deoxygenated blood from the insula and gyri and drains into the basal vein of Rosenthal deep in the lateral sulcus.


submental vein

description: A vein in the chin that is connected to the sublingual and anterior jugular veins and drains into the facial vein.


Structure of lumbar ganglia

description: Any of the sympathetic ganglion of the lumbar vertebrae.


name: Structure of anatomic arteriovenous anastomosis

description: A direct linkage between an artery and a vein.


regional part of nervous system

description: Any part or collection of parts of the central or peripheral nervous system. Parts may span both CNS and PNS.


flat bone

description: A bone that is shaped as a broad flat plate and composed of two thin layers of compact tissue enclosing between them a variable quantity of cancellous tissue, which is the location of red bone marrow.


left testicular vein

description: A vein that drains the right pampiniform plexus and empties into the inferior vena cava.


Median Vein

description: A vein originating in the thumb that ascends the forearm and branches into the median basilic and median cephalic veins at the elbow.


Lymph node of aortopulmonary window

description: A lymph node located in the aortopulmonary window.


urogenital diaphragm

description: Muscular components of the deep perineal pouch.


Neuroendocrine Cells

description: An endocrine cell that produces and releases hormones and regulatory proteins such as neurotransmitters and neuropeptide hormones. This type of cell enables autocrine communication with paracrine and endocrine cells throughout the body.


Venous Plasma

description: Plasma that has been isolated from venous blood.


left renal vein

description: A renal vein that drains the left kidney.


Regional lymph node

description: A lymph node that drains lymph from a region of interest.


Structure of esophageal lymph node

description: Any lymph node located near the esophagus, including cervical, and upper, middle, and lower thoracic lymph nodes.


proximal epiphysis of tibia

description: A proximal epiphysis that is part of a tibia.


Metacarpophalangeal Joint 4

description: A condyloid synovial joint within the fourth digit of the hand connecting the metacarpal to the proximal phalanx.


Aortoiliac Artery Segment

description: The segment of the arterial system that includes the iliac artery and its origin from the aorta.


Precentral cerebellar vein

description: A vein that arises from the precentral cerebellar fissure and terminates in the great central vein.


Anular ligament of radius

description: A ligament that surrounds the head of the radius.


Cortical Vein

description: Any vein within the cortex of the brain.


inferior pancreaticoduodenal vein

description: A blood vessel running parallel to the inferior pancreatico-duodenal artery that drains blood from the pancreas and duodenum into the splenic vein.


costochondral joint

description: A bars of hyaline cartilage located between the distal part of a rib and a costal cartilage, connecting the ribs to the sternum .


inferior parathyroid gland

description: Either of two paired parathyroid glands distal to the head.


anterior lingual gland

description: The small glands located near the apex of the tongue on either side of the frenulum.


Left brachiocephalic vein

description: A vein in the upper chest on the left side of the body that joins with the right innominate vein to form the superior vena cava.


Spongy urethra

description: The portion of the urethra that spans the corpus spongiosum.


Perifacial Lymph Node

description: A lymph node that is located above the mandibular margin of the submandibular triangle and is associated with the anterior facial vein and facial artery.


name: Structure of posterior cricoarytenoid ligament

description: A fibrous band extending from the cricoid to the inner, posterior border of the arytenoid cartilage.


anterior tibial vein

description: A vein of the lower limb that carries blood from the anterior compartment of the leg to the popliteal vein which is forms when it joins with the posterior tibial vein. Like most deep veins, the anterior tibial vein is accompanied by an artery of the same name, the anterior tibial artery, along its course. [WP,unvetted].


Femoral lymph node group

description: A lymph node located in the upper inner portion of the thigh.


gray matter of spinal cord

description: The ridge-shaped grey matter of the spinal cord that extends longitudunally through the center of each half of the spinal cord, and are largely or entirely composed of nerve cell bodies and their dendrites and some supportive tissue.


inferior palpebral vein

description: A blood vessel that drains from from an lower eyelid.


canal of Schlemm

description: The vascular structure encircling the anterior chamber of the eye, through which the aqueous humor is returned to the blood circulation.


paraurethral gland

description: The numerous mucous-secreting glands found in several female mammalian species (including rodents and humans) on the anterior wall of the vagina, around the lower end of the urethra, and possessing a common paraurethral duct which opens (on each side) near the external urethral orifice; they are homologous with the prostate gland in males, have highly variable anatomy, and are believed to be the source of the female ejaculate, a lubricating fluid with a similar consistency to male prostatic fluid that is expelled through the urethra during sexual stimulation; like the male prostate, these glands are susceptible to infection (skenitis), cyst development, and cancer.


adult mammalian kidney

description: A kidney at the most advanced stage of development in a mammal.


skin of abdomen

description: A zone of skin that is part of an abdomen [Automatically generated definition].


primordial ovarian follicle

description: Primordial follicles are indiscernible to the naked eye and develop to primary, secondary, and finally mature vesicular follicles.


organism subdivision

description: Anatomical structure which is a subdivision of a whole organism, consisting of components of multiple anatomical systems, largely surrounded by a contiguous region of integument.


Heart part

description: Any component of the organ which receives blood from the veins and ejects it into the arteries.


Digestive System Part

description: A term that refers to any anatomic structure that is part of the digestive system.


Structure of prelaryngeal lymph node

description: A lymph node located anterior to the larynx.


Skin structure of lower extremity

description: The integumentary covering of the lower extremities.


celiac ganglion

description: The celiac ganglia are two large irregularly shaped masses of nerve tissue in the upper abdomen. Part of the sympathetic subdivision of the autonomic nervous system (ANS), the two celiac ganglia are the largest ganglia in the ANS, and they innervate most of the digestive tract. They have the appearance of lymph glands and are placed on either side of the midline in front of the crura of the diaphragm, close to the suprarenal glands (also called adrenal glands). The ganglion on the right side is placed behind the inferior vena cava. They are sometimes referred to as the semilunar ganglia or the solar ganglia. [WP,unvetted].


fenestrated capillary

description: Capillary that has pores in the endothelial cells (60-80 nm in diameter) that are spanned by a diaphragm of radially oriented fibrils and allow small molecules and limited amounts of protein to diffuse.


Hepatoportal lymph node

description: A lymph node located in the transverse fissure of the liver.


Tibioperoneal Arterial Trunk

description: An arterial trunk that contains parts of the posterior tibial artery and fibular artery.


name: Intrahepatic Portion of the Right Hepatic Duct

description: The section of the right hepatic duct located in the liver.


Pararectal lymph node group

description: A lymph node that is located in the connective tissue adjacent to the rectum.


Paralaryngeal Lymph Node

description: A lymph node located adjacent to the larynx, in the parapharyngeal space.


thoracic ganglion

description: The thoracic ganglia are paravertebral ganglia. The thoracic portion of the sympathetic trunk typically has 12 thoracic ganglia. Emerging from the ganglia are thoracic splancic nerves (the cardiopulmonary, the greater, lesser, and least splanchic nerves) that help provide sympathetic innervation to abdominal structures. Also, the ganglia of the thoracic sympathetic trunk have both white and gray rami communicantes. The white rami carry sympathetic fibers arising in the spinal cord into the sympathetic trunk. [WP,unvetted].


Skin structure of chin

description: The integumentary covering of the chin.


head or neck skin

description: A zone of skin that is part of a craniocervical region.


mandibular nerve

description: The motor and sensory nerve subdivision of the trigeminal nerve that transmits sensory information from the auricle, the external acoustic meatus, tympanic membrane, temporal region, the cheek, the skin overlying the mandible, the anterior portion of the tongue, the floor of the mouth, lower teeth and gingiva and transmits motor information from the muscles of mastication, the mylohyoid muscle and digastric muscle and the muscles tensor tympani and tensor veli palatini.


right ear

description: The organ of hearing located on the right side of the head.


left ureter

description: An ureter that is part of a left side of organism [Automatically generated definition].


digital vein

description: Any vein containing deoxygenated blood that is located in a finger or toe.


Internal Occipital Vein

description: A group of veins that drain the infero-internal portion of the occipital lobe into the vein of Galen.


fundic gastric gland

description: The fundus glands (or fundic glands, or gastric glands) are found in the body and fundus of the stomach. They are simple tubes, two or more of which open into a single duct.


gland of anal canal

description: A gland that is part of an anal canal [Automatically generated definition].


regional part of spinal cord

description: A multi-tissue structure that is part of a spinal cord.


Uterine adnexae structure

description: The accessory structures of the uterus, including the ovaries, fallopian tubes, broad ligament, and the ovarian and uterine ligaments.


Skin part

description: Any component of the organ that constitutes the external surface of the body, including the epidermis, dermis, and skin appendages.


superficial vein

description: Any of the veins carrying deoxygenated blood from the subcutaneous tissue layers.


Scaphoid-Trapezoid Joint

description: The articulation of the scaphoid and trapezoid bones in the wrist.


long bone

description: A long bone is a bone that has a shaft and 2 ends and is longer than it is wide. Long bones have a thick outside layer of compact bone and an inner medullary cavity containing bone marrow.  The ends of a long bone contain spongy bone and an epiphyseal plate or line depending on the stage of development. The epiphyseal plate is a hyaline cartilage, where new bone growth takes place, lengthening the bone prior to adulthood. Bone lengthening ceases when this cartilage is lost, leaving a remnant referred to as an epiphyseal line.


Splenic Lymph Node

description: Any lymph node located along the splenic artery that receives afferent drainage from the pancreas, spleen, and stomach, and which generally has their efferents join the celiac group of preaortic lymph nodes.


mucoid tissue

description: Loose connective tissue, the intercellular matrix of which consists predominantly of mucoid ground substance. Examples: Mucoid tissue of umbilical cord, mucoid tissue of vitreous body, mucoid tissue of nucleus pulposus.


Endocrine Testis

description: The part of the testis that produces testosterone.


lacrimal gland

description: The lacrimal glands are paired almond-shaped glands, located in or near the orbital region, that secrete the aqueous layer of the tear film.[WP].


Interphalangeal Joint 3 of the Foot

description: A ginglymoid (hinge) synovial joint between the phalanges of the third digit of the foot.


Internal mammary lymph node group

description: Any of the lymph nodes located within the breast parenchyma.


external jugular vein

description: The external jugular vein receives the greater part of the blood from the exterior of the cranium and the deep parts of the face, being formed by the junction of the posterior division of the posterior facial with the posterior auricular vein. [WP,unvetted].


medial circumflex femoral vein

description: A circumflex femoral vein that accompanies the medial circumflex femoral artery.


Atrioventricular valve

description: One of two valves in the heart situated between the atria and ventricles, including the mitral valve and the tricuspid valve.


parietal pleura

description: The outer serous membrane of the pulmonary pleural.


blood vessel external elastic membrane

description: A thin layer of fibrous tissue capable of stretching and contracting. It is part of the tunica media of the blood vessels.


manual digit 4

description: 4th digit of the manus.


cerebral vein

description: The cerebral veins are divisible into external and internal groups according to the outer surfaces or the inner parts of the hemispheres they drain into. The external veins are the superior cerebral veins, inferior cerebral veins, and middle cerebral vein. [WP,unvetted].


Lymph Node of Head, Face and Neck

description: Lymph nodes found within the head and neck region of the body, which drain into the deep cervical nodes, either directly or indirectly. These include the occipital, mastoid, parotid, facial, retropharyngeal, submandibular, submental, lingual and cervical lymph nodes. Any lymph node located in the head or neck.


cartilage of bronchus

description: The hyaline cartilaginous structures that support the bronchi, present as irregular rings in the larger bronchi (and not as regular as in the trachea), and as small plates and islands in the smaller bronchi; as the branching continues through the bronchial tree, the amount of hyaline cartilage in the walls decreases until it is absent in the smallest bronchioles[MP].


pericardiacophrenic vein

description: Vena comitans of the pericardiacophrenic arteries.


internal cerebral vein

description: The internal cerebral veins (veins of Galen; deep cerebral veins) drain the deep parts of the hemisphere and are two in number; each is formed near the interventricular foramen by the union of the terminal and choroid veins. They run backward parallel with one another, between the layers of the tela chorioidea of the third ventricle, and beneath the splenium of the corpus callosum, where they unite to form a short trunk, the great cerebral vein; just before their union each receives the corresponding basal vein.


nasal septum

description: The nasal septum separates the left and right airways in the nose, dividing the two nostrils. It is depressed by the Depressor septi nasi muscle. [WP,unvetted].


anterior facial vein

description: A vein that represents a continuation of the angular vein and lies behind the facial artery.


pancreatic acinus

description: The secretory units of the exocrine pancreas, where fluid containing digestive enzymes is produced; consists of a group of secretory cells surrounding a luminal space that connects to the pancreatic duct.


Interphalangeal Joint 5 of the Foot

description: A ginglymoid (hinge) synovial joint between the phalanges of the fifth digit of the foot.


name: Distal Interphalangeal Joint 3 of the Hand

description: A ginglymoid (hinge) synovial joint within the third digit of the hand connecting the middle and distal phalanges.


cerebellar vein

description: A vein that drains the cerebellum.


bronchial vein

description: The bronchial veins are small vessels that return blood from the larger bronchi and structures at the roots of the lungs. The right side drains into the azygos vein, while the left side drains into the left superior intercostal vein or the accessory hemiazygos vein. The bronchial veins are counterparts to the bronchial arteries. The veins, however, do not return all of the blood supplied by the arteries; much of the blood that is carried in the bronchial arteries is returned to the heart via the pulmonary veins. [WP,unvetted].


perimysium

description: The fibrous sheath enveloping each of the primary bundles of skeletal muscle fibers.


Scaphoid-Lunate-Capitate Joint

description: A condyloid synovial joint within the wrist connecting the scaphoid, lunate, and capitate bones.


Salivary mucous gland

description: Salivary glands that produce and secrete a saliva made up exclusively of mucous.


tonsillar pillar

description: The anterior and posterior borders of the tonsillar fossa. They are composed of muscle tissue.


Epithelium Part

description: Any component of the avascular cellular layers that cover body surfaces and cavities and may form glands.


systemic vein

description: Any vein within the general circulation that transports blood back to the right atrium of the heart.


Endocrine Ovary

description: The part of the ovary that produces hormones, mainly estrogen and progesterone, though small amounts of androgens and other protein hormones are also produced.


hepatopancreatic ampulla

description: A dilation of the duodenal papilla that is the opening of the juncture of the common bile duct and the main pancreatic duct.


deep temporal vein

description: The blood vessels at the vertex and on either side of the head that drain deoxygenated blood into the pterygoid venous plexus.


Neck Lymph Node Boundary Level IV

description: The following anatomical structures define the neck lymph node boundary for level IV: Superior: horizontal plane defined by the inferior border of the cricoid cartilage; inferior: clavicle; anterior (medial): lateral border of the sternohyoid muscle; posterior (lateral): lateral border of the sternocleidomastoid or sensory branches of the cervical plexus. (AJCC 8th ed.)


Paratracheal lymph node group

description: A lymph node located adjacent to the trachea within the mediastinum. (NCI)


Skin of the Bending Joint

description: The integument that covers the bending joints.


Neck Lymph Node Boundary Sublevel IB

description: The following anatomical structures define the neck lymph node boundary for sublevel IB: Superior: body of the mandible; inferior: posterior belly of the digastric muscle; anterior (medial): anterior belly of the digastric muscle; posterior (lateral): stylohyoid muscle. (AJCC 8th ed.)


Carotid Artery Segment

description: A segment of a carotid artery.


nasociliary nerve

description: A branch of the ophthalmic nerve that serves to supply the mucous membrane of the nose, the tip of the nose, and the conjunctiva.


hair follicle isthmus

description: The middle part of the hair follicle that extends from the sebaceous duct to the bulge.


Structure of splenic lymph node

description: A lymph node located in the hilar region of the spleen.


Level III axillary lymph node

description: Axillary lymph nodes located superomedial to pectoralis minor.


conceptus

description: The embryo and its adnexa (appendages or adjunct parts) or associated membranes (i.e. the products of conception) The conceptus includes all structures that develop from the zygote, both embryonic and extraembryonic. It includes the embryo as well as the embryonic part of the placenta and its associated membranes - amnion, chorion (gestational sac), and yolk sac[WP].


Structure of thalamostriate vein

description: Either of two veins including the inferior and superior thalamostriate veins within the thalamus and striatum.


Neck Lymph Node Boundary Level VI

description: The following anatomical structures define the neck lymph node boundary for level VI: Superior: hyoid bone; inferior: suprasternal notch; anterior (medial): common carotid artery; posterior (lateral): common carotid artery. (AJCC 8th ed.)


cortex of lymph node

description: Peripheral portion of the lymph node, underneath the capsule[WP].


major vestibular gland

description: The paired glands located slightly posterior and to the left and right of the opening of the vagina in the superficial perineal pouch in females; they secrete mucus to lubricate the vagina and are homologous to bulbourethral (Cowper's) glands in males.


Lower extremity part

description: Any component of the hip, thigh, leg and foot.


prepuce of clitoris

description: A retractable double-layered fold of skin and mucous membrane that covers the clitoral glans.


Skin of the Sole

description: The integument that covers the underside of the foot.


diaphysis of radius

description: A diaphysis that is part of a radius bone[Automatically generated definition].


name: Structure of facial nerve marginal mandibular branch

description: A branch of the facial nerve that innervates the musculature of the lower lip.


right subcostal vein

description: A vein that extends along the bottom of the twelfth rib on the right side of the body.


small saphenous vein

description: The small saphenous vein (also lesser saphenous vein), is a relatively large vein of the superficial posterior leg. [WP,unvetted].


body of lateral ventricle

description: Part of lateral ventricle consisting of the central portion that lies dorsally, bounded by the thalamus on the ventral side (Adapted from Heimer, 1996).


Structure of left seminal vesicle

description: The seminal gland that is located to the anatomical left of the bladder.


Pectoral lymph node group

description: An axillary lymph node located along the lower edge of the pectoralis minor.


Proximal Interphalangeal Joint 2

description: A ginglymoid (hinge) synovial joint within the second digit of the hand or foot connecting the proximal and middle phalanges.


Subsegmental Bronchus of Left Lung

description: A part the bronchial tree of the left lung, an air passage arising from any segmental bronchus of the left lung and passing to the naturally delimited part of lung segment (subsegment), where it further subdivides into smaller passages.


Proximal Interphalangeal Joint 5

description: A ginglymoid (hinge) synovial joint within the fifth digit of the hand or foot connecting the proximal and middle phalanges.


Left Lower Forearm

description: The distal half of the left upper limb between the elbow and the wrist.


golgi tendon organ

description: The sensory organ in muscle that is involved in regulating muscle tension.


brain ventricle

description: One of the system of communicating cavities in the brain that are continuous with the central canal of the spinal cord, that like it are derived from the medullary canal of the embryo, that are lined with an epithelial ependyma, and that contain a serous fluid.


name: Structure of medial collateral ligament of knee joint

description: The flat, broad band of fibrous tissue located posteriorly on the inner side of the knee, extending from the medial epicondyle of the femur to the medial margin and surface of the tibia to prevent the knee from moving medially.


Superior Maxillary Nerve

description: The second division of the fifth cranial nerve, the trigeminal nerve, which supplies sensory fibers to all structures in and around the maxillary bone and the midfacial region.


mucosa

description: A lining of mostly endodermal origin, covered in epithelium, which is involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organs. It is at several places continuous with skin: at the nostrils, the lips, the ears, the genital area, and the anus. The sticky, thick fluid secreted by the mucous membranes and gland is termed mucus. The term mucous membrane refers to where they are found in the body and not every mucous membrane secretes mucus[WP].


articular cartilage of joint

description: A thin layer of cartilage, usually hyaline, on the articular surface of bones in synovial joints.


wall of urinary bladder

description: An anatomical wall that lines the insider of a urinary bladder.


Joint by Site

description: A grouping of joints based on their anatomical location.


Reproductive System Part

description: Any component of the male or female organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring.


deep fascia

description: Deep fascia (or 'investing fascia') is a layer of fascia which can surround individual muscles, and divide groups of muscles into compartments. This is the dense fibrous connective tissue that interpenetrates and surrounds the muscles, bones, nerves and blood vessels of the body. It provides connection and communication in the form of aponeuroses, ligaments, tendons, retinacula, joint capsules, and septa. The deep fasciae envelop all bone; cartilage, and blood vessels and become specialized in muscles and nerves. The high density of collagen fibers is what gives the deep fascia its strength and integrity. The amount of elastin fiber determines how much extensibility and resilience it will have.


Endocrine Reproductive Tissue

description: Tissue from reproductive organs within the endocrine system.


name: Proximal Interphalangeal Joint 2 of the Foot

description: A ginglymoid (hinge) synovial joint within the second digit of the foot connecting the proximal and middle phalanges.


Internal Lateral Ankle Ligament

description: A flat, triangular fibrous tissue connected to the inner malleolus, navicular bone and ligament, os calcis and astragalus.


Small Intestinal Serosal Surface

description: The thin outermost layer of loose connective tissue covering the outer surface of the small intestine. It is derived from the peritoneum.


upper eyelid

description: The larger thin membrane of skin extending from above the orbit and that covers a great portion of the eye.


Tissue Part

description: Any component of the anatomical structure consisting of similarly specialized cells and intercellular matrix, aggregated according to genetically determined spatial relationships, performing a specific function.


Interval Lymph Node

description: One of the nodes that lie along the course of a lymphatic vessel between a primary melanoma site and a recognized node field. (from Medscape)


Carpometacarpal Joint 5

description: A plane joint between the fifth metacarpal and the pisiform.


lower eyelid

description: The small thin membrane of skin extending from below the orbit and that covers the bottom portion of the eye.


venule

description: One of the minute vessels that collect deoxygenated blood from the capillary plexuses returns it to the veins.


name: Proximal Interphalangeal Joint 3 of the Hand

description: A ginglymoid (hinge) synovial joint within the third digit of the hand connecting the proximal and middle phalanges.


Round Ligament

description: Any of the round ligaments including the round ligament of the liver and the round ligament of the uterus.


skin of lip

description: A zone of skin that is part of a lip [Automatically generated definition].


anterior longitudinal ligament

description: A ligament running the length of the anterior surface of the spinal column and thereby interconnects all the vertebral bodies.


amphiarthrosis

description: Amphiarthrosis is a type of continuous, slightly movable joint.


Scaphoid-Lunate Joint

description: The articulation of the scaphoid and lunate bones in the wrist.


Basal Cerebral Vein of Rosenthal

description: A large blood vessel formed by the anterior and deep middle cerebral veins and small branches from the insula and cerebral peduncles which receives tributaries from the temporal horn and the medial temporal lobe and is joined by the inferior striate veins. This vessel may also receive blood from the lateral mesencephalic vein and empties into the vein of Galen.


lumbar nerve plexus

description: A nervous plexus in the lumbar region of the body which forms part of the lumbosacral plexus.


great saphenous vein

description: The great saphenous vein (GSV), also greater saphenous vein, is the large (subcutaneous) superficial vein of the leg and thigh. The terms 'safaina' (Greek) and 'el safin' (Arabic) have both been claimed as the origin for the word 'saphenous'. [WP,unvetted].


name: posterior cruciate ligament of knee joint

description: A fibrous band extending between the posterior intercondyloid fossa of the tibia and the anterior lateral region of the medial condyle on the femur to prevent the knee from moving posteriorly.


Neck Lymph Node Boundary Sublevel IIB

description: The following anatomical structures define the neck lymph node boundary for sublevel IIB: Superior: skull base; inferior: horizontal plane defined by the inferior body of the hyoid bone; anterior (medial): vertical plane defined by the spinal accessory nerve; posterior (lateral): lateral border of the sternocleidomastoid muscle. (AJCC 8th ed.)


Skin structure of back

description: The integumentary covering of the back.


Intracranial Anterior Circulation

description: A term referring to the brain area that is supplied by both the right and the left internal carotid arteries and their arterial branches.


vestibular nerve

description: The vestibular nerve is one of the two branches of the Vestibulocochlear nerve (the cochlear nerve being the other). It goes to the semicircular canals via the vestibular ganglion. It receives positional information. Axons of the vestibular nerve synapse in the vestibular nucleus on the lateral floor and wall of the fourth ventricle in the pons and medulla. It arises from bipolar cells in the vestibular ganglion, ganglion of Scarpa, which is situated in the upper part of the outer end of the internal auditory meatus. [WP,unvetted].


great vein of heart

description: The Great Cardiac Vein (left coronary vein) begins at the apex of the heart and ascends along the anterior longitudinal sulcus to the base of the ventricles. It then curves to the left in the coronary sulcus, and reaching the back of the heart, opens into the left extremity of the coronary sinus. It receives tributaries from the left atrium and from both ventricles: one, the left marginal vein, is of considerable size, and ascends along the left margin of the heart.


Skin Around the Mouth

description: The skin surrounding the mouth, including the skin of the lip.


right uterine tube

description: A fallopian tube that is part of a right side of organism [Automatically generated definition].


Distant Lymph Node

description: A lymph node located distant to the anatomic site of interest.


Structure of organ capsule

description: The external membranous envelope, typically comprising dense, irregular connective tissue, that encapsulates some organs.


anterior jugular vein

description: The anterior jugular vein begins near the hyoid bone by the confluence of several superficial veins from the submaxillary region. It descends between the median line and the anterior border of the Sternocleidomastoideus, and, at the lower part of the neck, passes beneath that muscle to open into the termination of the external jugular, or, in some instances, into the subclavian vein. It varies considerably in size, bearing usually an inverse proportion to the external jugular; most frequently there are two anterior jugulars, a right and left; but sometimes only one. Its tributaries are some laryngeal veins, and occasionally a small thyroid vein. Just above the sternum the two anterior jugular veins communicate by a transverse trunk, the venous jugular arch, which receive tributaries from the inferior thyroid veins; each also communicates with the internal jugular. There are no valves in this vein. [WP,unvetted].


Testicular Tissue

description: Parenchyma composed of seminiferous tubules embedded in loose connective interstitial tissue. The interstitial tissue contains clusters of testosterone-secreting Leydig cells, collagen and myoid cells.


suprarenal vein

description: A vein that drains the adrenal gland.


Structure of peroneal vein

description: A vein that arises from the plantar veins of the foot, accompanies the peroneal artery, and travels up the back of the leg to join the anterior and posterior tibial veins in forming the popliteal vein on the posterior surface of the knee.


Intrahepatic Large Bile Duct

description: The larger bile ducts which are located within the liver and drain bile from the smaller peripheral intrahepatic bile ducts into the right and left hepatic ducts.


Right brachiocephalic vein

description: A short vein in the area of the clavicle on the right side of the body that joins with the left innominate vein to form the superior vena cava.


reproductive organ

description: An organ involved in reproduction.


External Lateral Ligament of the Ankle

description: A ligament consisting of three distinct fasciculi including the anterior, middle and posterior fasciculi.


inferior hypophysial artery

description: The inferior hypophysial artery is an artery supplying the pituitary gland. It is a branch of the cavernous carotid artery (internal carotid artery).


Iliac vessel

description: Any of the branches of the vessels arising from the common iliac artery or vein, located in the pelvis.


sacral nerve plexus

description: A nerve plexus which provides motor and sensory nerves for the posterior thigh, most of the lower leg, the entire foot, and part of the pelvis.


female urethra

description: A urethra that is part of a female reproductive system.


basilic vein

description: A superficial vein of the upper limb that drain parts of manus and forearm.


Skin structure of palmar area of hand

description: The integument that covers the palms.


Head and Neck Part

description: Any component associated with of the base of the skull and facial bones, sinuses, orbits, salivary glands, oral cavity, oropharynx, larynx, thyroid, facial and neck musculature and lymph nodes draining these areas.


arytenoid cartilage

description: The paired triangular laryngeal cartilages located postlaterally at the level of the thyroid cartilage.


Mesenteric Ganglion

description: Any of the sympathetic ganglia associated with the mesenteric plexus.


duct

description: A tubular structure that transports secreted or excreted substances.


Posterior common hepatic lymph node

description: A lymph node located in the space between the portal vein and inferior vena cava, along the hepatoduodenal ligament.


Right lumbar lymph node group proper

description: A lymph node located adjacent to the lumbar region of the spine, along the right lateral aspect of the inferior vena cava.


Neuroepithelial Cells

description: A neural stem cell that can give rise to radial glial progenitor cells which through subsequent divisions may generate neurons or mature glial cells. This may also refer to the specialized sensory epithelial cells of the olfactory, gustatory, and vestibulocochlear receptor systems.


Integumentary system part

description: Any component of the enveloping membrane of the body, including the epidermis and dermis, and all of the derivatives of the epidermis.


Interphalangeal Joint 4

description: A ginglymoid (hinge) synovial joint between the phalanges of the fourth digit of the hand or foot.


serosa of uterus

description: Outer serosa layer of the uterus.


Krause's gland

description: Small, mucous accessory lacrimal glands that are found underneath the eyelid where the upper and lower conjuctivae meet. Their ducts unite into a rather long sinus which open into the fornix conjunctiva. There are approximately forty Krause glands in the region of the upper eyelid, and around 6 to 8 in the region of the lower lid. The function of these glands are to produce tears which are secreted onto the surface of the conjuctiva.


anterior horn of lateral ventricle

description: Part of the lateral ventricle that extends anteriorly into the frontal lobes, bordered by the head of the caudate nucleus on the lateral side (Adapted from Heimer, 1996).


right ovary

description: An ovary that is part of a right side of organism [Automatically generated definition].


name: Proximal Interphalangeal Joint 4 of the Foot

description: A ginglymoid (hinge) synovial joint within the fourth digit of the foot connecting the proximal and middle phalanges.


left ear

description: The organ of hearing located on the left side of the head[ncit,modified].


Laryngeal Mucous Salivary Gland

description: One of the many muciparous glands within the mucous membrane of the larynx.


tertiary ovarian follicle

description: A follicle that has reached the most mature stage of folliculogenesis, characterized by the presence of the antrum.


superior hypophysial artery

description: The superior hypophysial artery is an artery supplying the pars tuberalis,the infundibulum of the pituitary gland and the median eminence. It is a branch of the posterior communicating artery which branches from the internal carotid artery in the circle of Willis..


meniscus

description: Crescent-shaped fibrocartilaginous structure present in the knee, acromioclavicular, sternoclavicular, and temporomandibular joints[2] that, in contrast to articular disks, only partly divides a joint cavity.[3] A small meniscus also occurs in the radio-carpal joint.


major salivary gland

description: One of the three largest glands of the oral cavity that secrete most of the saliva, including the parotid, submandibular, and sublingual glands.


Fixed Lymph Node

description: A lymph node that has reduced mobility or is attached to adjacent structures.


vitreous body

description: Gelatinous mucoid tissue that is composed of vitreous humor and fills the cavity behind the crystalline lens of the eye and in front of the retina[MP,modified].


left lung alveolus

description: An alveolus that is part of a left lung [Automatically generated definition].


glomerular capillary

description: The small branching blood vessels in the kidney glomerulus that receives blood from the kidney afferent arterioles; these capillaries are under high pressure for filtering within the glomerulus.


perianal sebaceous gland

description: A holocrine gland that is part of the pilosebaceous unit of a hair located in the area around the anus.


high endothelial venule

description: High endothelial venules are specialized blood vessels adapted for lymphocyte trafficking. They form a spatially organized network, which controls both the type of lymphocyte and the site of entry into lymphoid tissues. Uniquely, high endothelial venules express vascular addressins that regulate lymphocyte entry into lymphoid organs. They perform this function in all lymphoid organs except the spleen.


name: Female Genital System Fluid or Secretion


vascular system

description: Anatomical system that consists of all blood and lymph vessels.


name: Distal Interphalangeal Joint 4 of the Hand

description: A ginglymoid (hinge) synovial joint within the fourth digit of the hand connecting the middle and distal phalanges.


median basilic vein

description: A vein between the biceps and pronator radii teres muscles that unites with the common ulnar vein to form the basilic vein within the forearm.


thoracic vein

description: A vein that is part of a thorax [Automatically generated definition].


brain white matter

description: The regions of the brain that are largely or entirely composed of myelinated nerve cell axons and contain few or no neural cell bodies or dendrites.


Gastrohepatic Lymph Node

description: A lymph node located in the gastrohepatic ligament.


Costochondral Joint 7

description: The seventh hyaline cartilaginous joint between the ribs and costal cartilage.


Interphalangeal Joint 3 of the Hand

description: A ginglymoid (hinge) synovial joint between the phalanges of the third digit of the hand.


central vein of liver

description: Vein that is central to a lobule in the liver.


Neural Pathways

description: The route in which a nerve impulse travels through a series of linked axons to connect different regions within the central nervous system or to convey information from the peripheral nervous system to the brain.


Hair Part

description: Any component of the filamentous outgrowth of the epidermis.


submandibular duct

description: The duct of the submadibular gland that opens at the sublingual papilla near the frenulum of the tongue.


fascia lata

description: The deep fascia of the thigh. [WP,unvetted].


Upper paratracheal lymph node

description: A lymph node located adjacent to the trachea within the mediastinum, above the inferior margin of the left brachiocephalic vein crossing the trachea on the left and the superior border of the aortic arch on the right.


Epithelial Cells

description: Any of the cells of the epithelium, which covers the body and lines its cavities and glands.


Regional tree segment of artery

description: A segment of a blood vessel that is part of the arterial system.


name: Distal Interphalangeal Joint 2 of the Hand

description: A ginglymoid (hinge) synovial joint within the second digit of the hand connecting the middle and distal phalanges.


taste bud

description: A specialized receptor organ that is a collection of cells spanning the gustatory epithelium.


Connective Tissue Fiber

description: One of three main components of connective tissue (fibers, ground substance and cells), of which there are three types: collagenous (thick bundles of collagen), reticular (thin bundles of collagen), and elastic fibers (branching bundles of elastin).


Glabrous skin

description: Skin that is naturally hairless.


fascia

description: A dense regular connective tissue that that connects muscles together[WP, modified].


maxillary vein

description: A vein that consists of a short trunk which accompanies the first part of the internal maxillary artery. It is formed by a confluence of the veins of the pterygoid plexus, and passes backward between the sphenomandibular ligament and the neck of the mandible, and unites with the superficial temporal vein to form the retromandibular vein. [WP,unvetted].


nerve plexus

description: Anatomical junction where subdivisions of two or more neural trees interconnect with one another to form a network through which nerve fibers of the constituent nerve trees become regrouped; together with other nerve plexuses, nerves and ganglia, it constitutes the peripheral nervous system. Examples: cervical nerve plexus, brachial nerve plexus, sacral nerve plexus[FMA].


Cardiovascular System Part

description: A term that refers to individual anatomic parts of the heart or the vessels.


Radial Vein of the Upper Extremity

description: A vein that ascends on the radial side of the forearm to drain blood from the palm of the hand. The radial vein joins with the median cephalic vein in the elbow to form the cephalic vein.


Interphalangeal Joint 3

description: A ginglymoid (hinge) synovial joint between the phalanges of the third digit of the hand or foot.


Secretory cell

description: One of several types of cells that generate and secrete a substance to be used by the organism.


intrapulmonary bronchus

description: A bronchial branch that is located within the lung tissue.


left adrenal gland

description: An adrenal gland that is in the left side of the abdomen.


Anterior Annular Ligament

description: A ligament present in the wrist and the ankle. In the wrist it is located over the carpus and in the ankle across the front of the leg and over the joint.


trachea basal lamina

description: A basal lamina that is part of a respiratory airway [Automatically generated definition].


Structure of great blood vessel (organ)

description: Any of the major arteries or veins attached to the cardiac atria or ventricles. This includes the aorta, superior and inferior vena cava and the pulmonary arteries and veins.


vertebral bone 1

description: The first vertebral bone in the vertebral column.


Female Reproductive System Part

description: Any component of the female organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring.


stellate reticulum

description: The stellate reticulum is a group of cells located in the center of the enamel organ of a developing tooth. These cells are star shaped and synthesize glycosaminoglycans. As glycosamingoglycans are produced, water is drawn in between the cells and stretch them apart. As they are moved further away from one another, the stellate reticulum maintain contact with one another through desmosomes, resulting in their unique appearance. stellate reticulum is lost after the first layer of dentin is laid down. this brings cells in inner enamel epithelium closer to blood vessels at the periphery[WP].


striated border microvillus layer

description: A microvillus layer that is striated and found in the intestine.


diaphysis of ulna

description: The body of the ulna at its upper part is prismatic in form, and curved so as to be convex behind and lateralward; its central part is straight; its lower part is rounded, smooth, and bent a little lateralward. It tapers gradually from above downward, and has three borders and three surfaces.


trachea basement membrane

description: A basement membrane that is part of a trachea.


trigone of urinary bladder

description: The smooth triangular region of the wall of the urinary bladder formed by the two ureteral orifices and the internal urethral orifice; it is an area in which the muscle fibers are closely adherent to the mucosa.


Structure of scalene lymph node

description: A lymph node located in proximity to any of the scalene muscles.


branch of internal carotid artery

description: Any artery arising from the internal carotid artery.


parasympathetic ganglion

description: Ganglion containing neurons that receive innervation from parasympathetic neurons in the central nervous system and subserves parasympathetic functions through innervation of smooth muscle, cardiac muscle and glands.


minor salivary gland

description: One of the smaller, largely mucus-secreting, exocrine glands of the oral cavity, consisting of the labial, buccal, molar, lingual, and palatine glands[MP].


intercostal nerve

description: The intercostal nerves are the anterior divisions (rami anteriores; ventral divisions) of the thoracic spinal nerves from T1 to T11. Each nerve is connected with the adjoining ganglion of the sympathetic trunk by a gray and a white ramus communicans. The intercostal nerves are distributed chiefly to the thoracic pleura and abdominal peritoneum and differ from the anterior divisions of the other spinal nerves in that each pursues an independent course without plexus formation. The first two nerves supply fibers to the upper limb in addition to their thoracic branches; the next four are limited in their distribution to the parietes of the thorax; the lower five supply the parietes of the thorax and abdomen. The 7th intercostal nerve terminates at the xyphoid process, at the lower end of the sternum. The 10th intercostal nerve terminates at the umbilicus. The twelfth thoracic is distributed to the abdominal wall and groin. [WP,unvetted].


neck of urinary bladder

description: The constricted portion of the urinary bladder, formed by the meeting of its inferolateral surfaces proximal to the opening of the urethra[MP].


Structure of intrapulmonary lymph node

description: A lymph node that is found within the parenchyma of the lung.


Metacarpophalangeal Joint 2

description: A condyloid synovial joint within the second digit of the hand connecting the metacarpal to the proximal phalanx.


Structure of pretracheal lymph node

description: A lymph node located anterior to the trachea, between the isthmus of the thyroid gland and the innominate vein.


Peripheral Nervous System Part

description: Any component of the nervous system that is external to the brain and spinal cord.


exocrine pancreas

description: The part of the pancreas that is part of the exocrine system and which produces and store zymogens of digestive enzymes, such as chymotrypsinogen and trypsinogen in the acinar cells [GO].


right lung alveolus

description: An alveolus that is part of a right lung [Automatically generated definition].


diaphysis of femur

description: A diaphysis that is part of a femur[Automatically generated definition].


thymus epithelium

description: An epithelium that is part of a thymus, forming a supporting framework[MP,modified].


costal cartilage

description: The nonvascular, resilient, flexible hyaline connective tissue that connects the end of a true rib to the sternum or the end of a false rib with the with the lower border of the costal cartilage above it.


Renal Tissue

description: Tissue composed of the renal cortex and the renal medulla. The basic functional unit of renal tissue is the nephron.


scalp

description: The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendonous galea aponeurotica; Loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL).


Structure of submental lymph node

description: The lymph nodes located between the anterior bellies of the digastric muscles.


name: Nerve Tissue, Neuroepithelial Tissue, and Nerve Sheaths

description: The basic components of the nervous system.  They contain neurons, supporting cells, and neuroepithelial cells.


neural nucleus

description: A spatially aggregated collection of nerve cell bodies in the CNS, consisting of one or more subpopulations that share cell type, chemical phenotype, and connections, and including nearby cells that share the same cell type, chemical phenotype, and connections. (CUMBO).


Breast part

description: Any anatomic component of one or both breasts.


iliac vein

description: Any of the three veins including the common, external and internal iliac veins.


gastrocolic ligament

description: A major portion of the greater omentum between the stomach and the transverse colon.


anal sac

description: In carnivores, either of two sacs found between the internal and external anal sphincters, lined with sebaceous glands and in some species with apocrine glands.


middle cardiac vein

description: The middle cardiac vein commences at the apex of the heart, ascends in the posterior longitudinal sulcus, and ends in the coronary sinus near its right extremity.


heart right ventricle

description: A cardiac ventricle that is in the right side of the heart.


Subsegmental bronchus

description: A part the bronchial tree, an air passage arising from the segmental bronchus and passing to the naturally delimited part of lung segment (subsegment), where it further subdivides into smaller passages.


Neck Lymph Node Boundary Level V

description: Neck lymph node boundary level V contains the posterior triangle lymph node group. It includes the lymph nodes located along the lower half of the spinal accessory nerve and the transverse cervical artery. The supraclavicular nodes are also included in this group. It is divided into sublevels VA and VB. The following anatomical structures define sublevel VA: Superior: apex of the convergence of the sternocleidomastoid and trapezius muscles; inferior: horizontal plane defined by the lower border of the cricoid cartilage; anterior (medial): posterior border of the sternocleidomastoid muscle or sensory branches of the cervical plexus; posterior (lateral): anterior border of the trapezius muscle. The following anatomical structures define sublevel VB: Superior: horizontal plane defined by the lower border of the cricoid cartilage; inferior: clavicle; anterior (medial): posterior border of the sternocleidomastoid muscle; posterior (lateral): anterior border of the trapezius muscle. (partially adapted from AJCC 8th ed.)


hepatic sinusoid

description: Wide thin-walled blood vessels in the liver. In mammals they have neither veinous or arterial markers.


Eye Part

description: Any component associated with the organ for sight or vision.


spinal dura mater

description: A dura mater that is part of a spinal cord [Automatically generated definition].


serosa of large intestine

description: A serous membrane that is part of a large intestine [Automatically generated definition].


Scaphoid-Capitate Joint

description: A condyloid synovial joint within the wrist connecting the scaphoid bone to the capitate bone.


Membrane of the Brain or Spinal Cord

description: The tissue that envelops the brain or spinal cord.


medial palpebral ligament

description: The medial palpebral ligament (tendo oculi), about 4 mm. in length and 2 mm. in breadth, is attached to the frontal process of the maxilla in front of the lacrimal groove. Crossing the lacrimal sac, it divides into two parts, upper and lower, each attached to the medial end of the corresponding tarsus. As the ligament crosses the lacrimal sac, a strong aponeurotic is given off from its posterior surface; this expands over the sac, and is attached to the posterior lacrimal crest.


Cervical sympathetic ganglion

description: Any one of the three sympathetic ganglia of the cervical vertebrae.


endomysium

description: A layer of connective tissue that ensheaths a muscle fiber and is composed mostly from reticular fibers. It also contains capillaries, nerves and lymphatics. The term cardiac skeleton is sometimes considered synonymous with endomysium, but sometimes it refers to the combination of the endomysium and perimysium.


Structure of buccinator lymph node

description: A lymph node that is located superficial to the buccinator muscle.


subcostal vein

description: A vein that runs along the bottom of the lowest rib. Each subcostal vein gives off a posterior (dorsal) branch which has a similar distribution to the posterior ramus of an intercostal artery. [WP,modified].


name: Distal Interphalangeal Joint 5 of the Foot

description: A ginglymoid (hinge) synovial joint within the fifth digit of the foot connecting the middle and distal phalanges.