I WONDER - How Quickly Does Blood Flow? Me Pregunto - Qué Tan Rápido Fluye La Sangre?

The video explains how blood flows quickly from the heart to the lungs to receive oxygen, then circulates throughout the body. The heart continuously pumps blood, taking about 20 seconds for a full circulation. It beats 60 to 100 times per minute, highlighting its constant and crucial role in maintaining circulation.

Describe the role of red blood cells in the body.

What does the heart do continuously according to the text?