the heart

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Across
  1. 2. stops the backflow into the chambers of the heart
  2. 6. electrocardiogram
  3. 8. atrium receives de oxygenated blood
  4. 10. fluid filled sac surrounding the heart
  5. 12. artery first choice for arterial puncture
  6. 13. rapid uncoordinated contractions
  7. 15. the wall separating the left and right side of the heart
Down
  1. 1. fossa anterior to and below the bend of the elbow
  2. 3. contracting phase of the heart
  3. 4. fast heart rate
  4. 5. smallest branch of the arteries
  5. 7. arising from the left ventricle
  6. 9. abnormal heart sounds due to faulty valve action
  7. 11. valve located between the left atrium and ventricle
  8. 14. the inner space of a blood vessel or tube