Question

What is the pace maker of heart?

Answer 1

Answer:

sino atrial node

Explanation:

it is pace mAker of heart

Answer 2

Answer:

The sinoatrial (SA) node or sinus node is the heart's natural pacemaker. It's a small mass of specialized cells in the top of the right atrium (upper chamber of the heart). It produces the electrical impulses that cause your heart to beat.