Mature Lymphocyte
mature lymphocyte
"A white blood cell that matures in the primary lymphoid organs and then circulates through the lymph system to the secondary lymphoid tissues where it interacts with antigens. A mature lymphocyte varies in size from 7 to 15 micrometer in diameter and is round or ovoid, but may be notched or slightly indented. The chromatin is generally diffusely dense and nucleoli are not usually visible."