The ventricles are separated by two grooves, one of which, the anterior longitudinal<unk> , is situated on the sternocostal surface of the heart, close to its left margin, the other<unk>  longitudinal<unk> <unk> , inferior<unk>  groove), on the diaphragmatic surface near the right margin.
In it run the<unk><unk>  artery and middle cardiac vein.
Posterior interventricular sulcus
Anterior interventricular sulcus
Anterior commissure
Coronary sulcus
Cerebral crus
Limbus of fossa ovalis
Foramen ovale 
Lateral sulcus