Posterior interventricular sulcus

Definition

The posterior interventricular sulcus is a groove on the heart's surface, marking the boundary between the left and right ventricles on the posterior aspect. It houses important blood vessels that supply the heart muscle.

Related terms

Ventricles: Lower chambers of the heart that pump blood out to the body (left ventricle) and to the lungs (right ventricle).

Coronary arteries: Blood vessels that supply oxygen-rich blood to the myocardium, or heart muscle.

Anterior interventricular sulcus: A groove on the heart’s surface marking the external boundary between the left and right ventricles on its anterior aspect, also containing important blood vessels