Lymphatic System

Lymphatic System - Lymphatic System A. Functions 1....

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Lymphatic System A. Functions 1. Recycles interstitial fluid (also transports it) Interstitial fluid = fluid outside cell body and any other objects Fluid is reabsorbed through lymphatic capillaries 2. Lacteals: absorb lipids and fat-soluble vitamins (A, D, E, K) Vitamin A – vision Vitamin D – Calcium metabolism Vitamin E – Antioxidant Vitamin K – Coagulation 3. Immunity and defense B. Organs 1. Thymus gland: surrounds heart; important early in life, after puberty it eventually becomes scar tissue in the surrounding heart (T-cells) 2. Lymph nodes: located in popliteal, cubital, axilary, inguinal, cervical, paravertebral (alongside vertebral column) regions Interstitial fluid lymph nodes + WBC (to destroy toxins, bad cells, etc.) fluid that leaves is filtered another lymph node, etc. so only a purified form of interstitial fluid enters the blood vascular system 3. Lymphatic vessels: transport tubes of fluid for recycling
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This note was uploaded on 02/27/2008 for the course BISC 212Lx taught by Professor Moyer during the Spring '07 term at USC.

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Lymphatic System - Lymphatic System A. Functions 1....

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