Chapter 22 Vocabulary

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Across
  1. 3. the body's response to injury
  2. 5. organism that causes disease
  3. 7. a highly contagious bacterial infection that most often affects the lungs
  4. 8. a serious infection of the lungs
  5. 9. immunity that is acquired by receiving antibodies from another immune system
  6. 12. your body's last and most sophisticated line of defense against pathogens
  7. 13. tiny hairlike structures that line your air passages
  8. 14. simple, single-celled microorganisms that can live almost anywhere
  9. 15. your body's ability to destroy pathogens that it has previously encountered before the pathogens are able to cause disease
  10. 16. a viral infection that causes the lymph nodes, tonsils, and spleen to become swollen and tender
Down
  1. 1. a network of vessels that collects fluid from the tissues of your body and returns it to the bloodstream
  2. 2. can only be seen through a microscope
  3. 4. immunity that your own immune system creates
  4. 6. inflammation of the liver
  5. 10. yellowing of the skin
  6. 11. disease caused by organisms that enter, live in, and multiply within the human body
  7. 12. injection that causes you to become immune to a disease