Cardio

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Across
  1. 3. lining of the heart
  2. 4. contraction phase of the heartbeat
  3. 6. the largest artery in the heart
  4. 11. sinoatrial node
  5. 12. flow of blood from heart to lungs
  6. 13. carry blood toward the heart
  7. 14. high blood pressure
Down
  1. 1. small vein
  2. 2. beat of the heart
  3. 5. a gas brought in by the lungs and pumped throughout the body by the heart
  4. 6. large blood vessels that carry blood away from the heart
  5. 7. arteries that supply blood to the head and neck
  6. 8. prevent the backflow of blood
  7. 9. one of the lower chambers of the heart
  8. 10. relaxation phase of the heartbeat