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18 Cards in this Set
- Front
- Back
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pathogen
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foreign substances such as viruses, bacteria or parasites, that cause an immune response
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innate immunity
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nonspecific responses (do not discriminate) such as physical and chemical barriers and specialized blood cells that are present form birth and require little/no time to become active
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adaptive immunity
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a protective response mediated by lymphocytes, confers long lasting immunity against pathogens, takes time to develop
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vaccine
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killed/weakened microorganism that generate immune response, strong enough to create memory cells, weak enough to not produce symptoms
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phagocyte
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white blood cell that engulfs and ingests damaged cells and pathogens
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macrophage
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type of phagocytic cell that resides in tissues, inflammatory response
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neutrophil
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phagocytic cell in circulation, inflammatory response
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natural killer cell
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acts during innate immune response to find destroy virally infected cells and tumor cells
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interferon
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protein produced by virally infected cells that help protect adjacent cells from becoming infected
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complement
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proteins in blood that help destroy pathogens by coating/puncturing them
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histamine
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released by damaged tissue and during allergic reactions
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B cells
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white blood cells that mature in bone marrow and produce antibodies
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plasma cell
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activated B cell that divides rapidly and secretes antibodies
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memory cell
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long lived B /T cell produced during immune response and "remembers" pathogens
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T cells
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white blood cells produced in thymus
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helper T cell
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helps activate B cells to produce antibodies
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cytotoxic T cell
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destroys infected, cancerous or foreign cells
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humoral immunity
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adaptive immunity, fights free floating pathogens in blood and lymph fluid
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