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