Write the name of instrument used to measure heartbeat.

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Solution

Heartbeat is the spontaneous and rhythmic contraction and relaxation of the heart to pump out and receive blood to and from the body. Depending upon the nature of control of the heartbeat, the heart has two types, neurogenic myogenic heart.
The number of heartbeat per minute or the number of a cardiac cycle per minute is known as the heart rate which is measured by stethoscope.

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