the immune system

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Across
  1. 4. respond to allergen
  2. 5. given usually as a shot
  3. 10. Immunity long lasting and should protect the body from future infections
  4. 11. tiny little germs that require a host to multiply
  5. 13. system bodies defense against germs
  6. 14. living organisms that spread disease like animals
  7. 17. marrow sponge tissue inside bones
  8. 18. overly strong and cause the person discomfort
  9. 19. when antibodies that were produced in another organism
  10. 21. recycles old blood cells
  11. 23. prevents pathogen growth
  12. 26. heating up liquids so bacteria in the liquid dies
Down
  1. 1. disease that are not spread from person to person
  2. 2. a substance that causes an allergic reaction
  3. 3. clearance of infectious agents
  4. 6. high contagious and can be spread from one person to another
  5. 7. create white blood cells called T-cells
  6. 8. protects the body from infection
  7. 9. filter out germs that enter our lymphatic fluid through our blood
  8. 12. attach themselves to the outside of the virus
  9. 15. a chemical that destroys cancer cells
  10. 16. the outside of germs, like viruses
  11. 20. creates and protects goof bacteria
  12. 22. contains immune cells
  13. 24. traps pathogen
  14. 25. diseases that spread through unprotected sexual activities