Where are the coronary arteries? What do they do?

Where are the coronary arteries? What do they do?

Coronary arteries are the blood vessels that supply oxygen-rich blood to your heart muscle to keep it pumping. The coronary arteries are directly on top of your heart muscle. You have four main coronary arteries:

• The right coronary artery.
• The left coronary artery.
• The left anterior descending artery.
• The left circumflex artery.