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What is a role of the pacemaker or sinoatrial node (SAN)?

ATo initiate contraction of the ventricle
BTo pass the excitation through Purkinje fibres
CTo originate excitation in myogenic muscle
DTo cause the relaxation of the atria

Verified Answer :

CTo originate the excitation in the myogenic muscle. The SA node initiates the electrical impulse that goes through the heart and causes the depolarization of the right atrea 

The role of the pacemaker or sinoatrial node (SAN) is to C) To originate excitation in myogenic muscle.

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