___________ is the rhythmic contraction and relaxation of heart muscles.

Heartbeat

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Heart rate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Heartbeat

The heart is the pumping organ of the human body.

It shows rhythmic contraction and relaxation of muscles.

This rhythmic contraction followed by its relaxation constitute a heartbeat.

Whereas, heart rate is the number of heartbeats per minute.

Suggest Corrections

Similar questions

The rhythmic contraction and relaxation of heart muscles is known as ________.

Join BYJU'S Learning Program