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Crawford AP Ch 12

Human A & P Module 12 - The Lymphatic System

lymphatic tissue groups of lymphocytes and other cells which support the lymphocytes
lymph nodes encapsulated masses of lymphatic tissue found along lymph vessels
lymph watery liquid formed from interstitial fluid and found in lymph vessels
edema a buildup of excess interstitial fluid in the tissues, which can lead to swelling
immunological defense the process by which the body protects itself from pathogenic invaders such as bacteria, fungi, parasites, foreign substances, and toxic chemicals
mucosa-associated lymphoid tissue (MALT) concentrations of lymphatic tissue with no clear boundaries
lymph nodules lymphatic tissue arranged into compact, somewhat spherical structures
innate immunity an immune response that is the same regardless of the pathogen or toxin encountered
acquired immunity an immune response targeted at a specific pathogen or toxin
complement a series of about twenty plasma proteins activated by foreign cells or antibodies to those cells. They lyse bacteria, promote phagocytosis, and promote inflammation
interferon proteins secreted by cells infected with a virus. These proteins stimulate nearby cells to resist the virus
pyrogens chemicals that promote fever by acting on the hypothalamus
humoral immunity immunity that comes from antibodies in the blood
cell-mediated immunity immunity that comes from the action of T lymphocytes
Created by: akcrawford



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