Posterior interventricular sulcus
GROOVE SEPARATING THE HEART'S VENTRICLES
Posterior longitudinal sulci; Posterior longitudinal sulcus; Posterior interventricular groove; Sulcus interventricularis posterior; Posterior interventricular sulci
The posterior interventricular sulcus or posterior longitudinal sulcus is one of the two grooves that separates the ventricles of the heart and is on the diaphragmatic surface of the heart near the right margin. The other groove is the anterior interventricular sulcus, situated on the sternocostal surface of the heart, close to its left margin.