What is the typical heart rate set by the SA node?

The sinoatrial (SA) node is known as the natural pacemaker of the heart, primarily responsible for initiating the electrical impulses that dictate the heart's rhythm. The typical heart rate that the SA node generates is between 60 to 100 beats per minute, which is the normal range for a resting adult. This range allows the heart to efficiently pump blood throughout the body while ensuring adequate circulation and oxygen supply to organs and tissues.

The SA node's ability to set this heart rate is influenced by various factors, including autonomic nervous system input and hormonal effects, but its intrinsic firing rate is generally within the specified range. Thus, the statement that the typical heart rate set by the SA node is 60 to 100 beats per minute accurately reflects its physiological role in maintaining a consistent and effective cardiac output.