Chapter 27 The Immune System

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Across
  1. 1. substance that is able to kill or inhibit the growth of some microorganisms
  2. 3. large outbreak of a particular disease in a specific area
  3. 7. protein produced by B lymphocytes that specifically reacts with a foreign antigen
  4. 12. agent, such as a bacterium, virus, protozoan, or fungus, that causes infectious disease
  5. 14. white blood cell involved in specific immunity; a B cell or a T cell
  6. 15. severe hypersensitivity to a specific antigen, causing a massive histamine release
  7. 16. source of a pathogen in the environment
  8. 18. pathogen-caused disease passed from one organism to another organism
  9. 19. antibody-producing B lymphocyte
  10. 20. overactive immune response to environmental antigens
  11. 21. a disease found in only a few individuals within a population
  12. 22. for demonstrating that an organism causes a disease
Down
  1. 2. vaccination;develops an active immunity
  2. 4. lymphocyte that destroys pathogens and releases cytokines when activated
  3. 5. disease,such as type 1 diabetes, that results from an error in a biochemical pathway
  4. 6. long-lived lymphocyte produced during exposure to an antigen during the primary immune response; can function in future immune response to the same antigen
  5. 8. antiviral protein secreted by virus-infected cells
  6. 9. noninfectious disease, such as arthritis, that results from part of the body wearing out
  7. 10. postulates
  8. 11. protein in blood plasma that enhances phagocytosis
  9. 13. lymphocyte that activates antibody secretion in B cells and cytotoxic T cells
  10. 17. widespread epidemic