Across
- 3. waves of blood tell how fast ur heartbeat
- 7. to see how ur blood pushing to the arterys
- 9. sends single to beat
- 11. that scans kill stuff we don't need
- 12. help oxygenate blood
- 13. the lower to the chamber of the heart
- 14. help out blood keep oxygenated
- 15. thick wall of tissue separates the heart
Down
- 1. why our blood is red
- 2. help pick up bad things in our body
- 4. they collect things
- 5. help with blood circulation
- 6. we can see them in our arms
- 8. brings blood back to the heart
- 10. big large blood vessels