Across
- 3. Having a balanced diet help which system?
- 5. This system turns food into energy
- 8. System that produces blood cells
- 10. A way to keep systems of the body functioning well
- 11. Blood vessels that carry blood towards the heart
- 12. Heart attack is a sign of problems for this system
- 13. Digestive system begins here
Down
- 1. Most important organ in nervous system
- 2. Drinking this fluid helps all systems of the body
- 4. Hollow tube through the body
- 6. System that commands the body
- 7. It is a muscular organ that provides blood circulation
- 9. System that helps inhale oxygen