CV Physiology

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Across
  1. 2. contraction of the heart
  2. 6. the heart prefers this substrate over glucose
  3. 9. these receive and store blood while the ventricles are contracting
  4. 13. these allow for unidirectional blood flow in the venous system
  5. 14. these types of valves prevent backflow of blood into ventricles
  6. 15. volume of blood in the ventricles at the end of filling (abbr.)
  7. 16. these types of valves prevent backflow of blood into atria
  8. 17. part of the ECG that represents ventricular depolarization
  9. 18. relaxation of the heart
  10. 20. where APs originate in the heart
Down
  1. 1. time interval where normal cardiac impulses cannot restimulate an already excited area of the heart
  2. 3. pressure in the artery leading from the ventricles
  3. 4. part of the ECG that represents atrial depolarization
  4. 5. cardiac output = __ x __
  5. 7. this phase in the cardiac action potential causes contraction to last 3-15 times longer than a skeletal muscle twitch
  6. 8. where APs pause for 0.01 seconds to allow for atrial ejection
  7. 10. cardiac muscle is connected by these discs
  8. 11. degree of tension on the heart when ventricles begin contracting
  9. 12. volume of blood during isovolumetric relaxation
  10. 19. this ventricle is thicker than the other