GCSE Biology - The Heart #23

The video explains the circulatory system, focusing on the heart's structure and function. It describes the double circulatory system, detailing how blood flows through the heart, lungs, and body. The heart's chambers, valves, and pacemaker cells are discussed, along with the distinction between arteries and veins. The video also highlights the coronary arteries' role in supplying the heart with oxygenated blood.

Explain the difference between arteries and veins.

What are coronary arteries and why are they important?