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Definition
| diseases such as colds that are caused by agents that have invaded the body |
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Definition
| any agent that causes a disease |
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Definition
| German doctor, first one to come up with a procedure to identify the pathogen that caused a disease |
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Definition
| "rules" for determining cause of a disease |
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Definition
| skin and mucous membranes |
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Definition
| epithelial tissue that protects the interior surfaces of the body that may be exposed to pathogens |
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Definition
| protect against any pathogen |
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Definition
| a series of events that suppress infection and speed recovery |
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Definition
| most abundant phagocyte, can squeeze through capillary walls, go to site of infection, and destroy pathogens |
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Definition
| phagocytes that engulf pathogens and cellular debris, stay in body tissue waiting for pathogens or they go seek out pathogens |
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Definition
| large white blood cells; do not attack pathogens, but the cell the pathogens have infected; it pierces the infected cells allowing water in causing the cell to burst, good at killing virus infected cells |
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Definition
| rise in body temperature above the normal 37C or 98.6F |
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Definition
| 20 different proteins that circulate the blood and are activated when they encounter certain pathogens |
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Definition
| released by cells infected with viruses which causes neighboring cells to make a protein that make them resistant to viral infections |
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Definition
| makes billions of new lymphocytes each day |
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Definition
| helps make special types of lymphocytes |
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Definition
| collect lymph which contains lymphocytes |
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Term
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Definition
| stores healthy red blood cells, breaks down old red blood cells; produces lymphocytes and other white blood cells, collects pathogens that lymphocytes destroy |
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Definition
| lymph tissue in nose and throat |
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Term
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Definition
| white blood cells of the immune system |
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Term
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Definition
| when a lymphocyte recognizes a foreign antigen they bind to it and start a specific attack |
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Definition
| Y-shaped, 30,000 made per second by plasma cells; they do not destroy pathogen directly but inactivate it or help it be destroyed by nonspecific defenses |
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Definition
| lymphocytes that will not respond the first time that they meet with an antigen or an invading cell but will recognize and attack that antigen or invading cell during later infections |
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Definition
| first time encounter pathogen |
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Definition
| later infection by same pathogen (memory cells) more powerful and more antibodies |
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Term
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Definition
| the ability to resist an infectious disease |
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Definition
| the introduction of antigens into the body to cause immunity |
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Term
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Definition
| a physical response to an antigen |
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Definition
| respiratory disorder that causes the bronchioles to narrow |
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Term
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Definition
| a disease in which the immune system attacks the organisms own cells |
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