Across
- 1. A yellow substance produced during infections
- 3. Type of cell that can absorb bacteria
- 5. Keeps things out
- 7. A pathogen that enters your body
- 8. A type of chemical barrier
- 9. When a part of your body swells
- 11. An enlargement of part of your body
Down
- 1. A yellow liquid that's part of your blood
- 2. Being able to tell what is you
- 3. An invader in your body
- 4. An oil produced by your skin
- 6. A signaling chemical your immune system releases
- 10. Causes your body to become hotter