Chapter 19 The Circulatory System: The Heart

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Across
  1. 3. the amount ejected by each ventricle in 1 minute
  2. 4. valve that separates the right atrium and the right ventricle
  3. 7. septum that separates the ventricles
  4. 8. relaxation of the heart
  5. 11. pacemaker that initiates each heartbeat and determines the heart rate
  6. 12. blood vessels of the heart wall
  7. 14. layer that performs the work of the heart
  8. 15. branch of the left coronary artery that furnishes blood to the left ventricle
  9. 16. the inferior end of the heart
  10. 17. large vein on the posterior side of the heart that empties blood into the right atrium
  11. 19. contraction of the heart
  12. 20. serous membrane on the heart surface
  13. 22. fibers that distribute electrical excitation to the cardiocytes of the ventricles
Down
  1. 1. fatty deposit or blood clot in a coronary artery
  2. 2. listening to sounds made by the body
  3. 5. valve that blood passes through after leaving the right ventricle
  4. 6. adult resting heart rate over 100bpm
  5. 9. the broad superior portion of the heart
  6. 10. lubricating fluid enclosed in the pericardial cavity
  7. 13. the atria do this when at the same time the ventricles depolarize
  8. 18. the amount of blood ejected from the heart
  9. 21. during the P wave the atria do this