Write the name of the instrument used to measure heartbeat.

Rhythmic contraction and relaxation of the heart are known as heartbeat.

Each heartbeat has one systole and one diastole to distribute and receive blood to and fro the body.

The heart of a healthy person beats 72 times/minute.

An instrument that is used to measure the heartbeat is called a stethoscope.

The human heart beats 72 times/minute, called the heartbeat. The stethoscope is used to measure the heartbeat, and hearing heart sound is auscultation.