serous acinar cell of salivary gland
serous acinar cell of salivary gland
An acinar cell of the salivary gland, characterized by a pyramidal or triangular shape with a spherical nucleus and abundant eosinophilic zymogen granules. This cell secretes watery, enzyme‐rich fluid containing α-amylase, proline-rich proteins, and secretory immunoglobulins for starch digestion and antimicrobial defence. In humans and mice, serous acinar cell predominates in the parotid gland and to a lesser extent in the submandibular gland, where it exists alongside mucous acinar cells (Maruyama et al., 2019).