Across
- 3. produces white blood cells
- 7. windpipe
- 8. makes bones strong
- 10. outer layer of cerebrum
- 11. spongy bone
- 13. covers air tube when we swallow
- 15. flaky scalp
- 16. receives messages from your nerves
- 17. lumpy skin
- 19. the source of your nerves
Down
- 1. the main part of your brain
- 2. cells that clot blood
- 4. blood cells that carry oxygen
- 5. what blood travels through
- 6. throat
- 9. A small cut or scrape
- 11. framework of protein that makes up bones
- 12. blood cells that fight germs
- 14. A red or purple mark
- 18. voice-box