Main Model
Posterior interventricular branch
The right coronary artery (typical dominance)
gives rise to the large posterior interventricular branch, which descends in the posterior interventricular groove toward the apex of the heart.
This branch supplies adjacent areas of both ventricles and sends perforating interventricular septal branches into the interventricular septum. The terminal (left ventricular) branch of the right coronary artery then continues for
a short distance in the coronary sulcus. Thus, in the most
common pattern of distribution, the right coronary artery supplies the diaphragmatic surface of
the heart.