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28 Cards in this Set
- Front
- Back
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what are two major functions of the immune system?
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-neutralize/ attack pathogens
-provide resistance/immunity |
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what are four types of pathogens from largest to smallest?
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-parasites
-fungi -bacteria -viruses |
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where is excess interstitial fluid returned to that is collected by the lymphatic vessels?
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systemic blood circulation in the right atrium
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what is the build of fluid in the tissues called when lymphatic capillaries to not function properly?
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edema
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what is the lymph filtered through to remove antigens and pathogens and the immune system is triggered?
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lymph node
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what type of valves do lymphatic capillaries have to collect the excess interstitial fluid and any leaked proteins?
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one way
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what are special lymphatic capillaries in the intestines called?
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lacteals
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what do lacteals transport from the intestines into the blood?
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triglycerides and chylomicrons
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where do B and T cells originate from?
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the bone marrow
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where do the B cell mature?
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bone marrow
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where do the T cells mature?
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thymus
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Where do cell of the immune system originate?
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In the bone marrow
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when traveling in the blood what are immune system cells called?
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white blood cells
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Where are leukocytes normally found?
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in the blood
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where are non-leukocytes found?
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tissue
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what are secondary lymphoid organs where lymphocytes become actived?
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lymph nodes, spleen, tonsil, mucosa associated lymphoid tissue (MALT), follicles
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what are collections of lymphoid tissue called?
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MALT -for short
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what is distributed throughout the mucosal surfaces of the digestive, respiratory, and genitourinary system?
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MALT
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what are two functions of lymph nodes?
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filter lymph and mount an immune attack with antibodies/ or a cell mediated attack
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What type of lymphatic vessels carry lymph from the tissues to the lymph nodes?
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afferent
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what type of lymphatic vessels carry cleansed lymph away from the lymph nodes?
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efferent
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What cells are found in the germinal center of the lymphoid follicles?
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B cells
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What cells wander through the deep cortex searching dendritic cells for their special antigen?
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t cells
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where do Tcells wander through examining dendritic cells for their spoilage antigen?
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cortex
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What is a primary lymphoid organ that is the site for differentiation of lymphocytes into mature T cells?
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Thymus
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what happens to the thymus as we age?
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it regresses-involutes decreases in size
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what cleanses the blood, like the lymph nodes cleanse the lymph?
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spleen
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What are the functions of the spleen?
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-it removes:old, damaged red blood cells
-stores:iron -it is the site for activation of the immune response |
