Body Systems
Across
- 3. This can be lost just by breathing
- 4. There are ___ types of muscles
- 5. Has 54 bones
- 8. Fills bones
- 12. This system assists your sense of smell
- 17. The only organ that can float
- 18. A heart beats ___ times daily
- 20. This system controls brain growth
Down
- 1. Of energy reserves are used by the brain
- 2. There are more than ___ bones in your body
- 6. Blood vessels extend over 60,000 ___
- 7. Has 26 bones
- 9. Your body contains over ___ muscles
- 10. We have ___ of nerve cells
- 11. Muscles make up ___ of body weight
- 13. In the Nervous System, this is a major organ
- 14. This can be caused by many different viruses
- 15. The hardest working muscle
- 16. The heart pumps 2 ___ every time it beats
- 19. There are ___ types of circulatory systems