Cardiovascular System

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Across
  1. 1. system to measure the heart health
  2. 3. where ventricles contract
  3. 10. cells responsible for moving iron & O2
  4. 11. cells responsible for immune system
  5. 12. major organ that pumps blood
Down
  1. 2. blood that does contain oxygen
  2. 4. structure responsible for gas exchange
  3. 5. wave where the atria fill
  4. 6. structures moving blood to the heart
  5. 7. blood that does not contain oxygen
  6. 8. structures moving blood away from heart
  7. 9. cells responsible for clotting blood
  8. 13. where ventricles relax