The anterior interventricular sulcus (or anterior longitudinal sulcus) is one of two grooves separating the ventricles of the heart (the other being the posterior interventricular sulcus). It is situated on the sternocostal surface of the heart, close to the left margin of the heart.
On the sternocostal surface of the heart, close to the left margin, there is one of two grooves separating the ventricles (the other being the posterior interventricular sulcus). This groove is known as the anterior interventricular sulcus or anterior longitudinal sulcus.