Immune System

3. animals that carry disease causing organisms from person to person.
4. postulates Series of guidelines still used today to identify the microorganism that causes a specific disease.
7. The first antibiotic to be discovered.
9. A group of proteins that help other cells resist viral infection.
11. Activated mast cells release the chemical known as ________.
14. antibiotic that interferes with the growth of bacteria by blocking protein synthesis on their ribosomes.
18. nonspecific defense in the nose in throat that traps viruses and bacteria.
19. Bodies most important non-specific defense.
22. poisons that produce illness by disrupting bodily functions.
24. The most common overreactions of the immune system.
25. The injection of a weakend or mild form of a pathogen to produce immunity.
28. Scientist who found children suffering from joint inflammation and pain. He figured out it was caused by a bite from a deer tick.
29. Formation of a mass of growing tissue.

1. Change other than an injury that disrupts the normal functions of the body.
2. an enzyme that breaks down the cell walls of many bacteria.
5. non-living pathogen that can use the materials of a host cell to make copies of itself until the cell bursts.
6. compounds that kill bacteria without harming the cells of humans or animals.
8. system The bodies primary defense against pathogens.
10. The use of a combination of chemicals to destroy cancer cells.
12. The spread of cancerous tumors beyond their original site.
13. Disease causing agent.
14. pathogen spread by sexual contact.
15. dramatic example of what happens when cells of the immune system are weakened by infection.
16. Smooth muscle contractions reduce the size of air passageways in the lungs and make breathing difficult.
17. A protein that helps destroy pathogens.
20. A substance that triggers an immune response.
21. Life-threatening disease in which cells multiply uncontrollably and destroy healthy tissue.
23. Cancerous tumors.
26. Elevated body temperature.
27. Theory of Disease Conclusion that infectious diseases were caused by microorganisms.