lymphoid tissue 2 Flashcards
Prevents circulating antigens from reaching developing T cells in the cortex of the Thymus
Thymus-blood barrier
jobs of the spleen
- trap antigens
- reservoir for 1/3 of platelets
- hematopoiesis takes place here
- macrophages present destroy red blood cells
germinal center, corona, central artery, periarteriol lymphoid sheaths make up
white pulp in spleen
where red and white pulp interact
marginal zone
splenic chord formed by reticular cells, splenic sinusoid, pennicillar arteries, macrophage sheathed capillaries, circulating blood cells make up the …..
red pulp
smallest, most encapsulated lymphoid organs
lymph nodes
remove cellular debris, produce lymphocytes, add antibodies
lymph nodes
entry and exit point of lymph node
hilum
B cell rich cortex
outer cortex of lymph node
T cell rich cortex
inner cortex of lymph node
has a cortex and medulla, does not have lymphoid nodules, does not have cords and sinuses. Hint: has Hassle’s Corpuscles
Thymus
has a cortex and medulla, has lymphoid nodules, has cords and sinuses, cortical nodules, and subscapular sinuses
lymph nodes
does not have a cortex and medulla, has lymphoid nodules, has cords and sinuses, has central arteries
spleen
does not have cortex and medulla, has lymphoid nodules, does not have cords and sinuses, has epithelial covering
tonsils