I WONDER - What Is The Busiest Muscle In The Body?

The video tutorial explains the functions of eye muscles and the heart. It highlights how six eye muscles work continuously to enable vision, even during sleep and dreaming. The heart, as the second busiest muscle, pumps approximately 5 liters of blood per minute, totaling 300 liters per hour, maintaining a constant heartbeat of 60 to 100 times per minute.

Describe the activity of eye muscles when a person is dreaming.

What is the range of heartbeats per minute for a healthy adult?

• 40 to 60

• 60 to 100

• 100 to 120

• 120 to 140