Coronary Arteries

There are left coronary artery and right coronary artery.

Left coronary artery branches -3 branches

The artery from the point of origin to the first major branch is called the left main coronary artery. 

Two branches arise from the left main coronary artery: the left anterior descending artery, which courses down the anterior wall of the heart, and the circumflex artery, which circles around to the lateral left wall of the heart.

The right coronary artery, which leads to the inferior wall of the heart. The posterior wall of the heart receives its blood supply by an additional branch from the right coronary artery called the posterior descending artery.

Superficial to the coronary arteries are the coronary veins. Venous blood from these veins returns to the heart primarily through the coronary