Across
- 1. substances that can elicit a response from a B or T cell
- 6. a defense that is active immediately upon infection
- 8. triggers blood vessels to dilate and become more permeable to tissues
- 9. systemic inflammatory response
- 12. "record" information to fight pathogen if it comes back
- 13. the key players of adaptive immunity
- 14. provide innate defense, interfering with viruses and helping activate macrophages
- 15. are found throughout the body
Down
- 2. circulate in the blood and are attracted by signals from infected tissues
- 3. include the skin and mucous membranes of the respiratory, urinary, and reproductive tracts
- 4. actively secrete antibodies
- 5. agents that cause disease, infect a wide range of animals, including humans
- 7. life-threatening condition caused by an overwhelming inflammatory response
- 10. enables an animal to avoid, or limit many infections
- 11. discharge destructive enzymes