Heart Physiology

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Across
  1. 4. a measure of pressure required to force open semilunar valves
  2. 7. the name of the fibers branching off the bundle of His
  3. 10. the origin site of electric contraction that sets a rate of 60-80bpm
  4. 11. the result of heart rate times stroke volume
  5. 12. the amount of blood pumped out of a ventricle each heartbeat
  6. 13. relaxation of the heart
Down
  1. 1. a measure of volume of the heart chambers in diastole
  2. 2. the collection of fibers that carries electric signals down the interventricular septum
  3. 3. the number of cardiac cycles in a minute (bpm)
  4. 5. the cluster of cells that sets a secondary heart rate of 40-60bpm
  5. 6. the intrinsic ability of the heart muscle to shorten and generate force
  6. 8. contraction of the heart
  7. 9. another name for the intrinsic conduction system that sets a basic rhythm for the heart tissue