Crafting Attention-Grabbing Quiz Titles and Descriptions
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Questions and Answers

What is the intrinsic rhythmical rate of the SA node?

  • 57% of the time
  • 70-80 times per minute
  • 100-110 times per minute (correct)
  • Purkinje fibers
  • What is the reason for the pulse rate averaging 70 or 80 times per minute?

  • The effect of vagal tone (correct)
  • The percentage of times the SA node discharges
  • The presence of Purkinje fibers
  • The division of the intrinsic SA node
  • Which of the following is responsible for distributing electrical impulses throughout the ventricles?

  • Vagal tone
  • Purkinje fibers (correct)
  • SA node
  • Intrinsic rhythm
  • Study Notes

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