IPHY 3410 Lecture Notes - Lecture 14: Natural Killer Cell, Brachiocephalic Vein, Subclavian Vein
3 May 2017
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Document Summary
Lymphatic & immune system (no learning goals assigned for this section: definitions, lymphatic system, transport of interstitial fluid back to bloodstream from tissues. *much of this fluid has leaked out of capillaries, included cells and nutrients. Fluid that has leaked from blood capillaries called lymph when it is within lymph vessels: transport of absorbed fat from small intestine to blood, fluid travels through system of vessels and nodes. Lymph tissue throughout body: lymph = fluid w/in lymphatic vessels, lymphocytes = type of white blood cells(leukocytes) Fluid leaking out of blood capillaries into surrounding tissue = Vessels of lymphatic system lymph only moves towards heart: lymph capillaries, closed ended tubes made up of endothelial cells (simple squamous epithelium, recaptures plasma (fluid, fats, microrganisma, etc) that have collected within the body. Elephantiasis: lymphedema that has been caused by parasite. Larva carried by mosquitoes, but adult thrives in human lymphatic system blocking lymph nodes and collecting vessels: direction of lymph flow:
