The Immune System

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Across
  1. 1. substances that can elicit a response from a B or T cell
  2. 6. a defense that is active immediately upon infection
  3. 8. triggers blood vessels to dilate and become more permeable to tissues
  4. 9. systemic inflammatory response
  5. 12. "record" information to fight pathogen if it comes back
  6. 13. the key players of adaptive immunity
  7. 14. provide innate defense, interfering with viruses and helping activate macrophages
  8. 15. are found throughout the body
Down
  1. 2. circulate in the blood and are attracted by signals from infected tissues
  2. 3. include the skin and mucous membranes of the respiratory, urinary, and reproductive tracts
  3. 4. actively secrete antibodies
  4. 5. agents that cause disease, infect a wide range of animals, including humans
  5. 7. life-threatening condition caused by an overwhelming inflammatory response
  6. 10. enables an animal to avoid, or limit many infections
  7. 11. discharge destructive enzymes