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A&P Ch. 20

Lymphatic system

Name the main functions of the lymphatic system Return interstitial fluid to circulation, Absorb dietary lipids, defend against microorganisms, control abnormal host cells
Excess fluid not returned to blood and allows for leukocyte movement Lymph
Name charecteristics of lymphatic collecting vessels Smae three layers as veins, thinner walls w/ more internal valves, converge on lymphatic trunk
Collect lymph from collecting vessels, drain into subclavian veins Lymphatic trunks and ducts
How is lymph transported since the lymphatic system lacks a pumping organ? Lymph movement is assisted by contractions of nearby muscles and organs
Primary lymphoid organs of the body Lymph Nodes
What are the functions of the lymph nodes? Activating immune system, filter lymph
This organ triggers development of T cells and atrophies in adulthood Thymus
Functions of the spleen? B cells monitor for pathogens, macrophages remove old erythrocytes
Created by: Joshdole04