LYMPHOID TISSUES 02

Lymphocytes spend much of their lifetime moving between various tissue compartments, not all of which are referred to as "lymphoid tissues". This photomicrograph was taken from an alternative version of the same slide that was used to produce Lymphoid Tissues 03, but at some distance from the lingual tonsil. As such it is representative of many places in the body where scattered lymphocytes are found in different locations and in different functional states. The small dark nucleus just to the right of the "A" is a lymphocyte migrating through a stratified squamous epithelium. The cell to the right of "B" is a plasma cell, the end-product of the differentiation of a B-lymphocyte into a cell that makes and secretes antibodies. Any/all of the cells at "C" might also be lymphocytes, although there is insufficient detail visible to be certain about the identification of any of them.

Slide L-2, field H7/J7 of finder slide A, 40X objective