Cardiovascular Sytem Crossword

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Across
  1. 2. Abnormal heartbeat
  2. 4. Myocardial Infarction
  3. 5. Cardiovascular function
  4. 7. Ventricle relax
  5. 12. Heart sits in
  6. 13. Top part of the heart
Down
  1. 1. Send out blood
  2. 2. Between the lungs
  3. 3. Prevent backflow
  4. 6. Atria located
  5. 8. Insufficient blood supply
  6. 9. Less than a pound
  7. 10. Heart pointed end
  8. 11. Heart size like