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Immunology

What prevents you from getting sick, when you aren't sleep deprived.

QuestionAnswer
Two kinds of responses from immun. innate- barrier defense (skin, mucous membrane, secretion) or internal defense (phagocycitc cells, inflammation response, and natural killer cells) have rapid response. Other Acquire is sower- humoral response (antibodies) and cell-mediated responses.
Innate Responses are barrier defenses- initial defense is skin and lining of gut,: Also lysozym and Phagocytosis- enzyme in tissue, tears ect. Attck cell walls of gram positive bacterier. Phagocytes patrol mucous lining
How do your cells recognize a foreign cell? (Innate Response) Use TLR (Toll-like Receptor), which recognize framents of molecule that are characterist of phathogens
Inflammatory Resonse (A local Innate) Causes a reddening of the area which is caused by the release of histomines from the Mast cells. This causes dilation of the arterioles, so there is inclearased blood flow through capillaries allowing WBC and antibodies to leave plasma/ enter tissue
Esoniophils cells react to allergy and parasitic infections which are inhaled through the "sino"
neutrophils You have billions to match your billion neutrons. 1rst defense against pathogens, can kill about 20 bacteria before being deactivited.
Monocytes Even though mono means one, it is the second response. Grow up to be macrophages and kill 100 or so bacteria in a life time thus the name "big eaters"
Lypmhocytes Natural killer cells, clean up own cells with virus and cnacer.
Basophils- Release histomines and I can't think up a pneumonic for your, but basophils release the basic defense.
Cytokines regulatory proteins secreted by the cells of the immune system.
Acquired Immunity Get immunity once seen, why inocculate, Three kinds of cells participate (B cells, T cells, and NK cells)
Antigens vs Antibodies Antigens are foreign molecules that elict a response. Antibodies are proteins produced by the host and identify and kill antigen bearing cells.
Created by: kccroy
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