ANAT 216 Lecture Notes - Lecture 1: Subclavian Vein, Lymphatic Vessel, Extracellular Fluid
8 Mar 2017
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Document Summary
Lymphatic/immune system: lecture 1 (reading material: chapter 23: pages 608-615) Overview: made up of 2 semi-independent components: network of vessels and tissues. Lymphatic vessels: network of vessels, the green lines . Lymphoid cells, tissues, organs: scattered throughout body, darker green dots that are nodes, spleen, thymus, and tonsils. Transports lymph (maintains normal blood volume) : returns fluid that escaped from blood vascular system back to the blood. Produces, maintains and distributes lymphocytes: phagocytic cells produced by organs and tissues, important for body"s defense and resistance to disease. Provides alternate route for distribution of hormones, nutrients and waste products. Lymphatic vessels: at the level of the capillaries, exchange happens between blood and tissue environment (interstitial compartment). Most of what is transported through is passed on to the veins, some leaks into lymphatic system. Fluid that"s left behind (as much as 3. 6l/day) is interstitial fluid needs to be returned back to the blood for cardiovascular system to function.
