Heart

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Across
  1. 1. part of the circulatory system that originates at the left ventricle and ends at the right atrium
  2. 3. vessel that delivers oxygen-poor blood from upper part of the body to the heart
  3. 5. amount of tension that ventricles must overcome to eject blood during systole
  4. 9. innermost membrane of the heart
  5. 10. amount of stretch in ventricular walls prior to contraction
  6. 12. one complete cycle of contraction and relaxation of all heart chambers
  7. 14. the right atrioventricular valve
  8. 15. heartrate initiated at a location other than the SA node
  9. 17. relaxation of heart chambers
  10. 18. serous membrane surrounding the heart
  11. 20. muscular tissue of the heart
  12. 22. chamber of the heart that received blood from a vein
  13. 24. the part of the heart where electrical stimulation pauses before proceeding into the ventricles
  14. 25. part of the cardiac conduction system that transmits action potentials inferiorly toward the apex of the heart
  15. 28. part of the circulatory system that originates at the right ventricle and ends at the left atrium
  16. 29. parasympathetic control of heartrate
  17. 30. the amount of blood ejected from each ventricle during systole
  18. 31. tissue that enable one-way passage of blood from the right ventricle to pulmonary circulation
  19. 33. part of the cardiac conduction system that stimulates the entire myocardium for smooth ventricular contraction
  20. 34. vessel that originates at the right ventricle
  21. 35. the amount of blood ejected from the heart in one minute
Down
  1. 2. vessel that delivers oxygen-poor blood from lower part of the body to the heart
  2. 4. largest and strongest artery in the body
  3. 6. normal heartrate initiated at the SA node
  4. 7. chamber of the heart that ejects blood into an artery
  5. 8. lower than normal heartrate
  6. 11. measure of the number of contractions in one minute
  7. 13. vessels that deliver oxygen-rich blood to the left atrium
  8. 16. tissue that enables one-way passage of blood from the left ventricle to systemic circulation
  9. 19. another name for the mitral valve
  10. 21. contraction of heart chambers
  11. 23. abnormally high heartrate
  12. 26. ____ of His part of the cardiac conduction system at the superior end of the interventricular septum
  13. 27. the part of the heart that sets the timing and pace of the heartbeat
  14. 32. outermost heart tissue, same as visceral pericardium