The Immune System

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Across
  1. 3. / Undergoing ______ can cause nausea, hair loss, and headaches.
  2. 5. / A protein that is shaped like the letter Y with two antigen-binding sites.
  3. 7. / Carbohydrates, proteins, and lipids on the surfaces of viruses, bacteria, and other pathogens that trigger responses by the immune system.
  4. 8. / Immunity against pathogens in the body fluids.
  5. 11. / Cancerous tumors.
  6. 12. / _______ are compounds that kill bacteria without harming the cells of humans or animals.
  7. 14. / Elevated body temperature that slows or stops the growth of pathogens.
  8. 15. / When allergy causing antigens attach themselves to mast cells, the activated mast cells release chemicals known as ______.
  9. 17. / When scientists create a weakened or mild form of a pathogen to produce immunity, they are creating a(n) ________.
  10. 19. / A nonspecific reaction to tissue damage caused by injury or infection.
  11. 20. / The conclusion that says infectious diseases were caused by microorganisms, or germs.
  12. 21. / Poisons that produce illness by disrupting bodily functions.
  13. 23. / Defense that attacks disease-causing agents.
  14. 24. / The immunity produced by a vaccine.
  15. 25. / A mass of growing tissue.
  16. 26. / Common overreactions of the immune system.
  17. 28. / When cancerous cells move about the body.
  18. 29. / Noncancerous tumors.
Down
  1. 1. / Animals that carry disease causing organisms from person to person.
  2. 2. / _______ are some of the most dangerous pathogens spread from person to person by contact.
  3. 4. / Disease-causing agent.
  4. 5. / When the body attacks itself it produces a(n) _______.
  5. 6. / Scientists named proteins ______ because they interfere with the virus.
  6. 9. / Your body's most important nonspecific defense.
  7. 10. / Any change other than an injury that disrupts the normal functions of the body.
  8. 13. / The Greek physician Hippocrates noted that people who survived certain diseases had acquired ______.
  9. 16. / Uncontrolled cell growth and division.
  10. 18. / A series of guidelines used to identify the microorganism that causes a specific disease.
  11. 22. / Smooth muscles contract causing the passageways in the lung to reduce in size.
  12. 27. / When cells of the immune system are weakened by infection.