The atrioventricular (AV) node is a critical component of the heart's conduction system, responsible for regulating the timing of electrical signals between the atria and ventricles. However, it does not work directly with sensory cells in arteries to regulate the pacemaker. Instead, the primary pacemaker of the heart is the sinoatrial (SA) node, which generates electrical impulses that initiate heartbeats. Sensory cells in arteries, such as baroreceptors, help regulate blood pressure and heart rate indirectly by sending signals to the central nervous system, which can influence the heart's pacemaker activity.
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