Immune System Study Guide

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Across
  1. 3. a treatment that helps the body build immunity to an infectious disease
  2. 6. barriers kill pathogens before they can enter the body. Ex. stomach acid, tears & saliva.
  3. 7. can damage the body's cells, causing symptoms such as a rash or fever
  4. 9. Cancer is an example of a non-infectious disease
  5. 10. is the protection given to vulnerable people when enough people in a population are vaccinated
  6. 11. get the energy they need to live by feeding on dead matter or a living host
  7. 16. composed of b cells, memory cells and antibodies.
  8. 17. the rapid spread of a disease across multiple regions or worldwide
  9. 18. such as saliva, mucus, tears, and urine play an important role in the first line of defense.
  10. 19. The body system that prevents and fights disease
Down
  1. 1. general responses to infection like fever and inflammation.
  2. 2. disease is a disease caused by a pathogen
  3. 4. painful redness and swelling around the site of infection
  4. 5. single, simple cells with no nucleus
  5. 8. A medical condition that cannot spread from person to person.
  6. 11. The system of barriers to prevent pathogens from entering the body
  7. 12. barriers stop pathogens from entering the body by blocking or trapping them. Ex. skin, mucus & cilia
  8. 13. are organisms that are too small to see with the naked eye. They can be seen with a microscope.
  9. 14. Able to spread from one person or organism to another
  10. 15. clones itself and releases antibodies