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341 Chpt 16

Lymphatic system

3 Functions of lympatic system Return excess IS fluid to blood, transport digested lipids to blood via lacteals, help provide immunity
Names of lymphatic vessels (smallest to largest) capillaries, vessels, trunks, ducts
Thoracic duct Drains lymph from most of body and empties in left subclavian vein
Right Lymphatic duct drains head and upper right portion of body and empties into the right subclavian vein
Red bone marrow Mature B cells, immature T cells
Thymus gland Mature T cells
Primary lympatic organs Sites of lymph cell production and maturation
Secondary lympatic organs Sites of immune activity (lymph nodes, nodules, spleen)
Lymph nodes Lymph tissue covered by capsule. Lymph is cleaned and filtered.
Lymph nodules Masses of lymph tissue without capsule (tonsils, peyer's patches, and appendix)
Spleen Large mass of lymphatic tissue with thick capsule
Stroma Outer portion of spleen
Parenchyma Inner portion of spleen
White pulp Mostly lympocytes and macrophags (cleans and filters)
Red pulp Venous sinuses, immune cells remove old, damaged RBC from blood, and store platelets until needed
Created by: Kayerenee



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