Across
- 2. Skin, epithelial membranes, secretions.
- 3. A fluid rich in white blood cells, dead pathogens, and cell debris from damaged tissues.
- 6. Stimulate development of adaptive immunity in cells that contact the environment (such as skin).
- 11. Found on innate immune cells.
- 13. A generalized defense that is active immediately upon infection.
- 14. Are found throughout the body, agranulocytes, originate from monocytes.
- 15. Circulate in the blood and are attracted by signals from infected tissues.
Down
- 1. Found on potential pathogens.
- 4. Release chemicals directly leading to cell death, inhibiting the spread of virally infected, or cancerous cells.
- 5. Provide innate defense, interfering with viruses and helping activate macrophages.
- 7. A very organism-specific, memory-based defense that only invertebrates have.
- 8. Consists of about 30 proteins that are activated by substances on microbe surfaces.
- 9. Traps and allows for the removal of microbes.
- 10. In invertebrates, they circulate within hemolymph and carry out phagocytosis.
- 12. Discharge destructive enzymes, granulocytes, and involved in allergic and anti-helminth (worms) response.