Across
- 3. the tubes that carry broken down food through your body
- 6. the the air that you breathe back out
- 9. the sacs that fill with air when you breathe
- 11. the system that delivers oxygen around the body
- 13. the nervous system sends these to your brain
- 14. blood vessels that deliver deoxygenated blood to the heart
- 16. used to produce energy
- 19. The system considered the control switch of the body
- 20. the system that allows you to breathe
- 21. the organ system containing your body’s muscles
Down
- 1. delivers oxygen to the blood
- 2. This is one of the main organs in the nervous system
- 4. this muscle pumps blood through your body
- 5. what food is broken down into
- 7. blood vessels that deliver oxygen filled blood to the tissue in the body
- 8. the system that breaks down the food you eat
- 10. The other main organ of the nervous system
- 12. break down food into even smaller pieces
- 15. The muscle that is in your arms, legs, and stomach
- 17. where food is broken down by gastric juices
- 18. the muscles in your heart