Which one of the following acts as a pace set | vedclass

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(B) The $SA$ Node (Sinoatrial node) is known as the natural pacemaker of the human heart because it initiates the rhythmic electrical impulses that de

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$SA$ Node

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(B) The $SA$ Node (Sinoatrial node) is known as the natural pacemaker of the human heart because it initiates the rhythmic electrical impulses that determine the heart rate.The $AV$ Node (Atrioventricular node) acts as a pace setter or relay station that delays the impulse slightly to allow for ventricular filling.Therefore,the $SA$ Node sets the pace,and the $AV$ Node regulates the transmission of that pace.

Which one of the following acts as a pace setter of the human heart?

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