Across
- 2. how big is the average size heart?
- 3. organ system consists of skeletal, smooth and cardiac muscles?
- 7. what are cause by lack of oxygen?
- 9. how many times does it beat a day?
- 11. what is the only organ that can float on water?
- 12. which lung is smaller to allow room for the heart?
- 16. muscle contraction does what?
- 18. how many bones are in peoples body?
- 19. what does everybody have billions of all over their body?
Down
- 1. Largest muscle in your body?
- 4. located in the skull and vertebrae canal of the spine?
- 5. your nervous can be ... from scientists.
- 6. Whatstill functions while outside of the body?
- 8. where are most of your bones?
- 10. smallest bone in your body?
- 13. longest bone in your body?
- 14. what cells are unlike any other cell and have no nuclei?
- 15. what condition once was treated with psychotherapy?
- 16. Located throughout the rest of the body?
- 17. smallest muscle in your body?