Immune System

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Across
  1. 1. Non-living pathogen that can use the materials of a host cell to make copies of itself until the cell bursts.
  2. 4. The spread of cancerous tumors beyond their original site.
  3. 6. A substance that triggers an immune response.
  4. 9. Series of guidelines still used today to identify the microorganism that causes a specific disease.
  5. 12. Elevated body temperature.
  6. 13. Animals that carry disease causing organisms from person to person.
  7. 15. Activated mast cells release the chemical known as ________.
  8. 18. Disease causing agent.
  9. 19. Antibiotic that interferes with the growth of bacteria by blocking protein synthesis on their ribosomes.
  10. 22. Compounds that kill bacteria without harming the cells of humans or animals.
  11. 23. The most common overreactions of the immune system.
  12. 24. Change other than an injury that disrupts the normal functions of the body.
  13. 26. An enzyme that breaks down the cell walls of many bacteria.
  14. 27. A protein that helps destroy pathogens.
  15. 28. Pathogen spread by sexual contact.
  16. 29. Poisons that produce illness by disrupting bodily functions.
Down
  1. 2. The bodies primary defense against pathogens.
  2. 3. Life-threatening disease in which cells multiply uncontrollably and destroy healthy tissue.
  3. 5. Formation of a mass of growing tissue.
  4. 7. The injection of a weakend or mild form of a pathogen to produce immunity.
  5. 8. Conclusion that infectious diseases were caused by microorganisms.
  6. 10. The use of a combination of chemicals to destroy cancer cells.
  7. 11. Bodies most important non-specific defense.
  8. 14. A group of proteins that help other cells resist viral infection.
  9. 16. Nonspecific defense in the nose in throat that traps viruses and bacteria.
  10. 17. Smooth muscle contractions reduce the size of air passageways in the lungs and make breathing difficult.
  11. 18. The first antibiotic to be discovered.
  12. 20. Scientist who found children suffering from joint inflammation and pain. He figured out it was caused by a bite from a deer tick.
  13. 21. Cancerous tumors.
  14. 25. Dramatic example of what happens when cells of the immune system are weakened by infection.