Multiple Choice
The function of P cells found in the sinoatrial node and Purkinje fibers is that they:
A) are receptors for pain stimuli, such as the pain that occurs during infarction.
B) prolong the refractory period before the next contraction.
C) are assumed to be the site of impulse formation.
D) initiate repolarization of the myocardium.
Correct Answer:
Verified
Correct Answer:
Verified
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