Across
- 4. fluid that produces a fever when released into blood
- 6. the fluid containing white blood cells that defends against germs
- 8. a Y shaped protein that fights pathogens, bacteria and viruses
Down
- 1. type of white blood cell in the vertebrate immune system
- 2. the ability to resist a specific infection or toxin
- 3. glands throughout the lymph vessels, where white blood cells fight infection
- 5. foreign object; triggers the production of
- 7. an opaque liquid produced in infected tissue; made of dead white blood cells