Lymphatic System Flashcards
six primary lymph sacs that form at the end of the 6th week
2 jugular
2 iliac
1 retroperitoneal
1 cisterna chyli
_____ will connect to lymph sacs and pass along ______
lymph vessels
main veins
lymph nodes develop from
parts of lymph sacs
mesenchyme invades to form lymph sinuses that get covered by capsules
spleen develops from
mesenchymal cells in mesentery behind stomach
tonsils develop from
aggregations of lymph tissue
what do lymph vessels do?
drain interstitial fluid (lymph) from tissue back into venous system
________ drain lymph TO lymph nodes
_______ drain lymph FROM lymph nodes
afferent lymphatic capillaries
efferent lymphatic capillaries
lymphatic capillaries in intestinal villi
central lacteals
primary lymph organs (2)
bone marrow and thymus
secondary lymph organs (6)
lymph nodes, spleen, bone marrow, MALT, tonsils, peyer’s patches
site of T cell production and maturation
thymus
_____ of thymus is darker and produces immunocompetent T cells
______ of thymus contains mature immunocompetent T cells
cortex
medulla
Five parts of structure of lymph nodes
capsule cortex medulla sinuses vessels
B cell area of lymph nodes
Germinal center in secondary nodules
cortex
function of lymph nodes
filters particulate material from lymph
site for antigen presentation to lymphocytes and lymphocyte activation
