3. Which of the following is not correct regarding a prepotential: it is a spontaneous depolarization it occurs...

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Medical Sciences

3. Which of the following is not correct regarding aprepotential:

  1. it is a spontaneous depolarization
  2. it occurs as the result of the influx of Ca2+ via L-typechannels
  3. it is due to \"funny\" current
  4. the # of prepotentials per minute = HR

4. What would happen if you injected a drug into the papillarymuscle that caused it to relax during systole (ventricularcontraction)?

  1. blood would flow from the atria into the ventricles
  2. the tension of the chordae tendineae would increase
  3. the ventricles would relax
  4. the seal of the AV valves would be compromised

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