Across
- 1. makes up central nervous system with spinal cord
- 3. bones are made up of a framework of this protein
- 8. muscle in the front of the upper arm
- 9. carry blood away from the heart
- 12. pull on joints allowing us to move
- 14. contains the information that makes you you
- 15. carries messages from the sensory organs
- 16. the top part of the air-only pipe
- 18. which make new bone and help repair damage
- 19. the continuation of the air way below the larynx
Down
- 2. a big artery that leaves the heart
- 3. the outer layer of the cerebrum
- 4. allows us to breathe
- 5. contracts to bend a limb at a joint
- 6. air is warmed and humidified when entering here
- 7. carry blood back to heart
- 10. contracts to extend or straighten the limb
- 11. break down bone and help sculpt and shape it
- 13. atrioventricular valves open, ventricles relax
- 17. also protect the organs in our body