Across
- 7. the amount your heart beats while inactive
- 10. how you breathe
- 11. 60-75% of your max heart rate
- 14. 220 - your age
- 15. takes oxygenated blood to your body
Down
- 1. how you can feel your heart rate
- 2. takes un-oxygenated blood back to the heart
- 3. part heart
- 4. muscle that helps your lungs breathe
- 5. connects muscle to bone
- 6. what makes your bones move
- 8. the main entrance of air to your lungs
- 9. makes up most of your blood
- 12. muscle in joints
- 13. the organ made of muscle that pumps blood