Immune System

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Across
  1. 2. red blood cells
  2. 3. immune sentinels
  3. 6. any substance that antagonizes or stimulates the immune system
  4. 7. a form of small leukocyte
  5. 10. treatment with a vaccine to produce immunity against a disease
  6. 14. a complex biological system endowed with the capacity to recognize and tolerate whatever belongs to the self
  7. 15. a breakdown or inability of certain parts of the immune system to function
  8. 17. a type of immune cell that can surround and kill microorganisms
  9. 19. blood cells that are essential to clotting
  10. 20. a type of white blood cell that makes antibodies
Down
  1. 1. a mean by which the body is given immunity to a disease by intentional exposure to small quantities of it
  2. 4. medicines that fight bacterial infections in people and animals
  3. 5. part of the immune system and develop from stem cells in the bone marrow
  4. 8. a protein produced by the body's immune system when it detects harmful substances
  5. 9. any infectious disease
  6. 11. one of the white blood cells
  7. 12. the natural or genetic ability of an organism to avoid or repel attack by biotic agents
  8. 13. complex system of cells, tissues, organs, and the substances that help the body fight infections
  9. 16. a chemical messenger protein
  10. 18. “Cell suicide”