What is the function of the Sino-atrial node (SAN) in the heart?
What is the function of the Sino-atrial node (SAN) in the heart?
To control blood pressure
To control heart rate
To control the stroke volume
To control the blood flow
Solution
The Sino-atrial node (SAN) generates the maximum number of action potentials per minute and sets the pace of the activities of the heart, hence it is called the pacemaker.