Across
- 2. - Elevated body temperature in response to infection
- 4. Blood Cells - Help the body fight off infections and foreign invaders
- 6. - Redness, heat, swelling, and pain
- 7. - Large phagocytic cell
- 8. - Sticky substance trapping pathogens
Down
- 1. (e.g., Skin) - Keeps pathogens out
- 3. - Engulfs foreign particles
- 5. - System of proteins enhancing immune reactions