The Human Defense System

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Across
  1. 3. Acts as a physical barrier
  2. 4. an organism the causes disease
  3. 7. Organ of the specific immune system
  4. 9. A system that acts as a barrier to all pathogens attempting to gain entry to the human body
  5. 11. A protein produced by white blood cells in response to specific antigens
  6. 12. The ability to resist disease by antibody production
  7. 13. Foreign molecules on the surface of pathogens and stimulate antibody production
Down
  1. 1. the ability to resist infection
  2. 2. Some lymphocytes mature here
  3. 5. B cell lymphocytes mature here
  4. 6. white blood cells that surround and digest pathogens
  5. 8. attacks particular pathogen
  6. 10. Lines the respiratory systems and moves mucous back out of the respiratory system