Circulatory System

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Across
  1. 2. Keeps blood from flowing backwards
  2. 5. Smallest blood vessels
  3. 7. Take blood back to the heart
  4. 10. Part of the circulatory system; the pump
  5. 12. Top chambers of the heart
  6. 13. Take blood away from the heart
  7. 15. Blood that has oxygen
  8. 16. Where blood gets oxygen from
Down
  1. 1. Bottom chambers of the heart
  2. 3. Help clot blood
  3. 4. Blood that is low in oxygen
  4. 6. Having to do with the lungs
  5. 8. Another name for the circulatory system
  6. 9. Rooms of the heart
  7. 11. Largest artery in the body
  8. 14. Wall separating right and left chambers of the heart