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Immune System

Immune system and related vocabulary

TermDefinition
immune system complex group of defenses that protects the body against pathogens--includes the skin and respiratory, digestive, and circulatory systems
antigen any complex molecule that is foreign to your body
antibody a protein made in response to a specific antigen that can attach to the antigen and cause it to be useless
active immunity long-lasting immunity that results when the body makes its own antibodies in response to a specific antigen
passive immunity immunity that results when antibodies that are produced in one animal are introduced into another's body; does not last as long as active immunity
vaccination process of giving a vaccine by mouth or by injection to provide active immunity against a disease
pasteurization process in which a liquid is heated to a temperature that kills most bacteria
virus a strand of hereditary material surrounded by a protein coating that can infect and multiply in a host cell
infectious disease disease caused by a virus,bacterium, fungus, or protist that is spread from an infected organism or the environment to another organism
biological vector disease carrying-organism that carries a disease, such as a rat, mosquito, or fly, that spreads a disease
sexually transmitted disease (STD) infectious disease, such as chlamydia, AIDS, or genital herpes, that is passed from one person to another during sexual contact
noninfectious disease disease, such as cancer, diabetes, or asthma, that is not spread from one person to another
allergy overly strong reaction of the immune system to a foreign substance
allergen substance that causes an allergic reaction
chemotherapy use of chemicals to destroy cancer cells
Created by: MsHollinger
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