the heart system

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