The left main coronary artery arises from the left coronary cusp and bifurcates into the left anterior descending (LAD) and the left circumflex coronary arteries. Since the left main supplies a ...

This is considered a “left dominant” system. The most common congenital anomaly of the circumflex coronary artery is when it arises from the right coronary cusp. This is a benign anomaly and ...