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