Across
- 2. cell surface proteins that match an individual’s own genetic code or assist the immune system to identify foreign molecules.
- 4. white blood cells that engulf and digest bacteria and foreign material.
- 6. type of cytokines that attracts neutrophils and monocytes to remove debris, promotes the maturation of more T cells when they detect antigens, and directs B-cell lymphocytes to multiply and mature.
- 7. immunity that occurs as a direct result of infection by a specific microorganism.
- 9. chemical substances that destroy foreign agents such as microorganisms.
- 11. large phagocytes present in tissues such as the lungs, liver, lymph nodes, spleen, and peritoneum.
- 13. immediate but short-lived immunity that develops when ready-made antibodies are given to a susceptible individual.
- 15. immune process in which many different proteins are activated in a chain reaction when an antibody binds with an antigen.
- 16. foreign substance that induces an immune response.
- 17. formation of antibodies
- 18. white blood cells with immune functions.
Down
- 1. immunity that results from the administration of a killed or weakened microorganism or attenuated toxin.
- 3. structures that maintain immunocompetence, the ability to cooperatively protect a person from external invaders and the body’s own altered cells.
- 5. process that occurs when T cells survey proteins in the body, actively analyze the surface features, and respond to those that differ from the host by directly attacking the invading antigen.
- 8. phagocytes present in blood that migrate to tissue as necessary to ingest small-sized debris.
- 10. proteins produced by B lymphocyte plasma cells that bind with antigens and promote the destruction of invading cells; also known as antibodies.
- 12. inability to mount an immune response.
- 14. target-specific system of defense against infectious, foreign, or cancerous cells carried out primarily by lymphocytes.