Heart

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