BIOL301 Study Guide - Lymphatic Vessel, Lymphatic System, Extracellular Fluid
15 Apr 2014
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Document Summary
Contains the following components: vessels, organs (lymphatic tissue plus cells, fluid. Function of the lymphatic is: transport fluid lymph. Return tissue fluid and proteins to the blood. A one-way system fluid only flows toward the heart: immune response protection from pathogens. Carry fluid to great veins in the neck. Once tissue fluid is within lymphatic vessels it is termed lymph: any blockage in the lymphatic vessels causes affected body region to swell with excess lymph, a condition known as edema. Smallest lymph vessels first to receive lymph. Walls consist of single layer of endothelial cells. High permeability allows entrance of: tissue fluid and protein molecules, bacteria, viruses, and cancer cells. Located in the villi of the small intestines: receive digested fats, fatty lymph chyle. Lymphatic capillaries are absent from bone and teeth, from bone marrow, and the entire cns: lymphatic collecting vessels. Lymph propelled by: skeletal muscles bulging, nearby arteries pulsing, tunica media of the lymph vessels.
