Which of the following statements is FALSE?
A) The rapid depolarization phase of the action potential in pacemaker cells results from the influx of sodium through voltage-gated sodium channels.
B) The repolarization of the pacemaker cells following an action potential allows the heart to relax between contractions.
C) The resting membrane potential of cardiac pacemaker cells gradually becomes less negative on its own.
D) Pacemaker cells repolarize by opening voltage-gated potassium channels.
E) None of the answer options is false.
Correct Answer:
Verified
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