BIOL-2230 Chapter Notes - Chapter 20: Fetus, Lingual Tonsils, Regulatory T Cell
26 Feb 2017
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The lymphatic system returns fluids that have leaked from the vascular system. This leaked fluid must somehow be returned to the blood to ensure that the. As blood circulates through the body, nutrients, wastes, and gases are exchanged. Lymph nodes that cleanse the lymph as it passes through them. The lymphoid organs and tissues provide the structural basis of the immune back to the blood. These organs and tissues play essential roles in the body"s defense mechanisms and its resistance to disease. These structures include the spleen, thymus, tonsils, and other lymphoid tissues scattered throughout the body. 20. 1 the lymphatic system includes lymphatic vessels, lymph, and lymph nodes between the blood and the interstitial fluid. The hydrostatic and colloid osmotic pressures operating at capillary beds force fluid out of the blood at the arterial ends of the beds and cause most of it to be reabsorbed at the venous ends.
