The Cardiovascular System

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Across
  1. 3. valve that makes whistling sound
  2. 7. cardiac muscle cells grouped together
  3. 9. volume of pumped blood by each ventricle per beat
  4. 11. last phase of diastole of the cardiac cycle
  5. 12. pathway that connects SA node to AV node
  6. 15. external membrane that is thin and covers the heart
  7. 17. fibers of cardiac pacemaker cells that extend from the bundle of His
  8. 21. side of the heart that has the most muscle
  9. 22. valve that makes swishing sound
  10. 23. heart walls middle layer
  11. 24. number of valves in heart
  12. 25. atrium that receives oxygen poor blood
Down
  1. 1. ventricular repolarization
  2. 2. node only in right atrium
  3. 4. tissue that separates ventricles from atria
  4. 5. atria depolarization
  5. 6. Ventricle depolarization
  6. 8. large diameter vessels formed by merging venules
  7. 10. endothelial tissue that lines the heart walls
  8. 13. carry blood from heart
  9. 14. abnormal heart sounds
  10. 16. heart’s inability of cardiac output
  11. 18. pathway that connects the right atrium to the left
  12. 19. valves that ensure 1 way blood flow
  13. 20. node that exhibits 50 action potentials per min