The right coronary artery arises from the right coronary cusp and is the dominant coronary vessel in 80% of individuals (dominance refers to the coronary vessel that supplies the posterior ...

The left coronary artery continues at the anterior side of the heart between the right and left ventricle. Several diagonal branches cross the left ventricular anterior wall (Figure 2).

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 does not result in myocardial ischemia.

The heart muscle needs oxygen-rich blood to do its job. The vessels that feed the heart are called coronary arteries (shown in the diagram right) and they branch off from the body’s main artery, the ...