In the electrical conduction system of the heart, the normal pacemaker of the heart is the:

Which of the following is the correct sequence of components in the heart's electrical conduction system?

In the electrical conduction system of the heart, the normal pacemaker is located in which structure?

In the electrical conduction system of the heart, the primary pacemaker is the:

Which structure is the primary pacemaker of the heart under normal resting conditions?

In the electrical conduction system of the heart, which sequence correctly describes the pathway that carries cardiac impulses from initiation to ventricular conduction?

Which structure is the normal pacemaker of the heart, initiating the electrical impulse that sets the rhythm under normal conditions?

Autorhythmicity in the heart (the ability to spontaneously generate electrical impulses) is primarily the responsibility of which structure?

Which structure is considered the primary pacemaker of the heart under normal physiological conditions?