Across
- 2. vertebra found in the neck
- 4. lower chambers of the heart
- 6. largest artery in the body
- 10. one of the two bones in the forearm
- 11. longest bone in the body
- 12. the heel bone in the foot
- 14. protects the spinal cord
- 16. carries oxygen to the rest of the body
- 17. primary muscle that helps with respiration
- 18. outer layer of the bone
Down
- 1. brain part dealing with eye sight
- 3. sends impulses to the heart and through the nervous system
- 5. number of lobes of lungs
- 6. upper chambers of the heart
- 7. blood vessels that mostly lead toward
- 8. location of oxygen and carbon dioxide exchange
- 9. number of chambers of the heart
- 11. long thinner bone in the lower leg
- 13. tail bone or lowest part of the vertebra
- 15. separation of time during gestation