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19 Cards in this Set
- Front
- Back
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Pathogens
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Disease-causing organisms
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Infectious Diseases
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Diseases caused by pathogens
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Nonspecific Defenses
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Do not distinguish one invader from another
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Interferon
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Protein that prevents viruses from reproducing
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Inflammatory Response
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Redness, swelling, and pain
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Histamines
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Cause nearby blood vessals to expand, allowing more bood to flow
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Immunity
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Your body is resistant to the pathogen that causes a specific disease
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Antigen
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Large molecule that causes an immune response
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Antibody
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Protein found on the surface of certain WBC or in blood plasma
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Humoral Immunity
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Specific immunity provided by B cells htat produce antibodies
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Cell-mediated Immunity
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Involves T cells attacking body cells that are infected with a pathogen
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Cytotoxic T Cells
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Attack cells infected with the pathogen
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Helper T Cell
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Secretes chemicals that help T cells and B cells respond to pathogens
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Memory Cells
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Cells that remain in the body for a long time
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Vaccine
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Dose of a pathogen or part of a pathogen that has been disabled or destroyed so it is no longer harmful
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Active Immunity
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When the body produces antibodies against infection
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Passive Immunity
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When body receives antibodies for a particular disease from another source
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Allergy
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Abnormal reaction to a non-harmful antigen
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Autoimmune Disease
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Condition in which the immune system attacks some of the body's own molecules
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