Heart anatomy and physiology

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Across
  1. 3. deoxygenated blood from systemic circulation
  2. 6. heart muscle receives blood from the two
  3. 8. associated disorder of pulse rate
  4. 11. AV valves closes
  5. 14. refers to pericarditis
  6. 15. recording of electrical event of the heart
  7. 16. splits into two pathways in inter-ventricularseptum
  8. 17. positioned between the right atrium and ventricle
  9. 18. sudden, complete blockage of an artery
  10. 19. pace maker cells
  11. 20. inflammation of the myocardium
Down
  1. 1. much thicker than atria myocardium
  2. 2. muscle layer that contract
  3. 4. last phase of cardiac cycle
  4. 5. corresponds to atrial myocardium depolarization
  5. 7. period of atrial relaxation
  6. 9. atria are physically separated from each other by the
  7. 10. between the thoracic cavity
  8. 12. brings oxygen poor blood to right atrium
  9. 13. the heart double layer sac