Chapter Biology - Chapter 12b Lymphatic System The...

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Chapter 12b Lymphatic System
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The Lymphatic System Lymphatic system functions Return interstitial fluid to the blood stream Transport products of fat digestion Defend the body against disease-causing organisms and abnormal cells
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The Lymphatic System Tonsils • Protect the throat against bacteria and foreign agents Right lymphatic duct • Returns the lymph from the upper part of body to the blood Thymus • Site where T lymphocytes mature, enabling them to fight specific disease-causing organisms Thoracic duct • Returns lymph from (a) The lymphatic system returns the fluid to the bloodstream that previously left the capillaries to bathe the cells, protects against disease-causing organisms, and transports products of fat digestion from the small intestine to the bloodstream. most of the body to the blood Spleen • Site of lymphocyte production • Removes old red blood cells, foreign debris, and microorganisms from the blood Lymph vessels • Return excess interstitial
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