The Amazing Heart: Pumping Life Through Your Body

The video explains how to find your pulse by placing a finger on your wrist, feeling the rhythmic bump caused by blood flow. It describes the heart as a pump that circulates blood throughout the body and to the lungs. The heart, a hollow muscle the size of a fist, pumps blood continuously, delivering oxygen and removing waste gases through the lungs.

Describe the structure of the heart.

What happens to blood when it reaches the lungs?