¿Por qué late el corazón?

The video tutorial explains how a pump works by using air to inflate a tire, and draws a parallel to how the heart functions as a pump to circulate blood throughout the body. It describes how the heart rate varies with different activity levels, such as resting and exercising, and concludes by reinforcing the analogy between a bicycle pump and the heart.

What is the significance of the heart pumping blood to the body?

Describe the relationship between air pumps and the heart.