Which of the following has the ability to gen | vedclass

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(D) The heart is myogenic,meaning it can generate its own electrical impulses. The $SA$ node (Sinoatrial node) is known as the pacemaker of the heart

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$SA$ node

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(D) The heart is myogenic,meaning it can generate its own electrical impulses. The $SA$ node (Sinoatrial node) is known as the pacemaker of the heart because it has the highest rate of spontaneous depolarization and generates action potentials without any external stimulus. While the $AV$ node and Purkinje fibers also possess autorhythmicity,the $SA$ node initiates the impulse that sets the rhythm for the entire heart.

Which of the following has the ability to generate an action potential without any external stimulus?

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