Across
- 1. brings blood back to the heart
- 3. main organs of the respiratory system
- 8. breaks down food
- 9. fibers that send messages to the brain and body
- 12. support framework
- 13. transports oxygen, nutrients, and waste
- 14. breathing system
Down
- 2. system that is made up of hair, skin, nails
- 4. system for communication and control
- 5. soft material at the end of bones
- 6. main organs of the excretory system
- 7. movement and posture
- 10. removes liquid waste
- 11. takes blood away from the heart