Just like every organ and muscle in your body, your heart also needs oxygen and nutrients. The arteries that feed your heart sit on the outside of the heart and are called coronary arteries. There are two main coronary arteries that feed each side: the left coronary artery and the right coronary artery.

 

Your Heart
What the Heart Does
The Structure of the Heart
Heart Chambers and Vavles
The Electricity of the Heart
The Coronary Arteries
Heart Disease