Investigating Circulation: the Amazing Heart

The video explains the heart's role in circulating blood throughout the body. It describes the heart's structure, including its chambers and septum, and details the two main phases of the heart's pumping action: diastole and systole. The video also outlines the pathways of blood flow, highlighting how oxygen-depleted blood is oxygenated in the lungs and how oxygen-rich blood is distributed to the body.

What is the function of the heart in the circulatory system?

Explain the role of the atria and ventricles in the heart.

Describe the two main periods of the heart's pumping action.

What happens to blood in the lungs during circulation?

How does oxygen-rich blood travel from the heart to the rest of the body?