Across
- 2. a group of cells, tissues and organs that work together to protect the body
- 4. a type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells
- 7. a type of blood cell that is made in the bone marrow and found in the blood and lymph tissue
- 8. submicroscopic infectious agent that replicates only inside the living cells of an organism
- 9. the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell
- 11. the act of introducing a vaccine into the body to produce protection from a specific disease
- 15. aims at eliminating specific pathogens that have been encountered by the immune system previously
- 16. a cell that is part of the immune system and helps the body fight infections and other diseases
- 17. a drug used to treat infections caused by bacteria and other microorganisms
- 19. a mean by which the body is given immunity to a disease by intentional exposure to small quantities of it
- 20. a complex network of cells, tissues, organs, and the substances they make that helps the body fight infections and other diseases
Down
- 1. when germs like bacteria or fungi no longer respond to the drugs designed to kill them
- 3. a type of immune cell that is made in the bone marrow and is found in the blood and in lymph tissue
- 5. a type of immune cell that can surround and kill microorganisms, ingest foreign material, and remove dead cells
- 6. physical and chemical barriers that are always ready and prepared to defend the body from infection
- 10. a type of white blood cell
- 12. acquired from exposure to the disease organism through infection with the actual disease
- 13. a protein made by plasma cells (a type of white blood cell) in response to an antigen
- 14. any substance that causes the body to make an immune response against that substance
- 18. a type of white blood cell that makes antibodies