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26 Cards in this Set

  • Front
  • Back
organisms that cause diseases
infectious disease
a disease that can pass from one person to another
a heating process that is widely used to kill microorganisms in food products such as milk
a white blood cell that engulfs pathogens and destroys them by breaking them down
inflammatory response
part of the body's defense against pathogens, in which fluid and white blood cells leak from blood vessels into tissues; the white blood cells destroy pathogens by breaking them down
immune response
part of the body's defense against pathogens in which cells of the immune system react to each kind of pathogen with a defense targeted specifically at that pathogen
white blood cell that reacts to each kind of pathogen with a defense targeted specifically at that pathogen
T cell
a lymphocyte that identifies pathogens and distinguishes one pathogen from another
a molecule on a cell that the immune system can recognize either as part of the body or as coming from outside the body
B cell
a lymphocyte that produces chemicals that help destroy a specific kind of pathogen
a chemical produced by a B cell of the immune system that destroys a specific kind of pathogen
(aquired immunnodeficiency syndrome) a disease caused by a virus that attacks the immune system
the ability of the immune system to destroy pathogens before they can cause diseases
active immunity
immunity that occurs when a person's own immune system produces antibodiesin response to the presence of a pathogen
the process by which harmless antigens are deliberately introduced into a person's body to produce active immunity
a substance used in vaccination that consists of pathogens that have been weakened or killed but can still trigger the immune system into action
passive immunity
immunity in which the antibodies that fight a pathogen come from another organism rather than from the person's own body
a chemical that kills bacteria or slows their growth without harming the body cells of humans
noninfectious disease
a disease that does not spread fom person to person
a disorder in which the immune system is overly sensitive to a foreign substance
a chical that is responsible for the syptoms of an allergy
a disorder in which the respiratory passages narrow significantly
a chical produced in the pancreas that enables the body's cells to take in glucose from the blood and use it for energy
a condition in which either the pancreas fails to produce enough insulin, or the body' cells can't use it properly
a mass of abnormal cells that develop when cancerous cells divide and grow uncontrollably
a sudstance or a factor in the environment that can cause cancer