Intro to the Circulatory System

The video explains the circulatory system, highlighting its role in transporting oxygen and nutrients while removing waste. It describes the double circulatory system, consisting of the pulmonary and systemic circuits, and details how blood flows through arteries, capillaries, and veins. The heart's function in maintaining circulation is emphasized, along with the structural differences between arteries and veins. The video concludes with a call to action for viewers to engage with the content.

What happens to blood at the capillaries?

How does deoxygenated blood return to the lungs?