circulatory system
Across
- 3. heart racing
- 5. something red in your body
- 7. help you live
- 8. allows blood to flow in one direction
- 9. muscle that beats
- 10. helps you breathe
Down
- 1. moves it blood to the heart
- 2. carry blood away
- 4. connect arteries and veins
- 6. help breathe