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5 Cards in this Set
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Define disease |
Anything which causes your body to stop functioning properly; usually temporarily |
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1st line of defense |
Skin ×××Prevent entry using the skin. The skin provides a physical barrier. The skin contains keratin which prevents pathogens from multipying. The sebum on the skin breaks down to form acid. Blood also prevents pathogen from spreading; blood clot forms when skin is broken. Mucous membrane ×××contains IgA that bind to pathogens Cilia ×××moves in a breathing motion so mucous can be expelled Fluids ×××tears, saliva, sweat Lysozyme degrades pathogen Chemical ×××stomach acids kill of pathogens |
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2nd line of defense |
Inflammation ×××damaged xells release a chemical called histamine which attract neurophils which eat the bacteria and die
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Phagocytosis |
2nd Line of Defense Phygocytes are also called white blood cells. Engulf pathogens and foreign bodies |
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3rd Line of Defense |
Lymphatic system Lymphocytes are the vessels and capillaries that carry fluids around thr body and through the lymphnodes. lymphnodes. All fluids are filtered through the lymphnodes.Lymphocytes make antibodies. Antibodies bind to pathogens and attract macrophages.Macrophages eat pathogens. Lymphocytes make antibodies. Antibodies bind to pathogens and attract macrophages. lymphnodes.Lymphocytes make antibodies. Antibodies bind to pathogens and attract macrophages.Macrophages eat pathogens. Macrophages eat pathogens. |
