Miscellaneous Part II Immune System

1. used to attack invading bacteria, viruses, and toxins.
8. physical and chemical barriers that are always ready and prepared to defend the body from infection.
11. infectious agent of small size and simple composition that can multiply only in living cells of animals, plants, or bacteria.
12. A type of white blood cell that makes antibodies.
13. A type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.
14. A type of immune cell that can surround and kill microorganisms, ingest foreign material, and remove dead cells.
15. Any substance that causes the body to make an immune response against that substance.
17. acquired from exposure to the disease organism through infection with the actual disease.
18. a method by which a virus can replicate its DNA using a host cell.
19. A drug used to treat infections caused by bacteria and other microorganisms.
20. the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell.

2. eliminating specific pathogens that have been encountered by the immune system previously
3. a group of cells, tissues and organs that work together to protect the body
4. results when exposure to a disease organism triggers the immune system to produce antibodies to that disease
5. a mean by which the body is given immunity to a disease by intentional exposure to small quantities of it.
6. provided when a person is given antibodies to a disease rather than producing them through his or her own immune system.
7. happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them.
9. A complex network of cells, tissues, organs, and the substances they make that helps the body fight infections and other diseases.
10. A type of white blood cell.
16. The act of introducing a vaccine into the body to produce protection from a specific disease.