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Biology 40.2
 

Biology 40.2

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    Biology 40.2 Biology 40.2 Presentation Transcript

    • 40.2 The Immune System
    • Immunity
      Ability of the body to resist a specific pathogen.
    • Inflammatory Response
      Nonspecific defense reaction to tissue damage caused by injury or infection.
    • Fever
      Elevated body temperature that occurs in response to infection.
    • Interferon
      One of a group of proteins that helps cells resist viral infection.
    • Immune Response
      The body’s specific defenses that attack a disease-causing agent.
    • Antigen
      Substance that triggers an immune response.
    • Humoral Immunity
      Immunity against antigens and pathogens in the body fluids.
    • Cell-Mediated Immunity
      Immunity against abnormal cells and pathogens inside living cells.
    • Antibody
      Protein that helps destroy pathogens.
    • Vaccination
      Injection of a weakened or mild form of a pathogen to produce immunity.
    • Active Immunity
      Immunity produced by exposure to an antigen, as a result of the immune response.
    • Passive Immunity
      Short-term immunity caused when antibodies produced by other animals for a pathogen are injected into the body.
    • Key Concept
      The function of the immune system is to fight infection through the production of cells that inactivate foreign substances or cells.
    • Key Concept
      Your body’s most important nonspecific defense is the skin.
    • Key Concept
      The inflammatory response is a nonspecific defense reaction to tissue damage caused by injury or infection.