 The portion between the sulcus intermedius and the duodenopyloric constriction is termed the pyloric antrum.At its commencement the greater curvature is covered by peritoneum continuous with that covering the front of the organ.The left part of the curvature gives attachment to the gastrolienal ligament, while to its anterior portion are attached the two layers of the greater omentum, separated from each other by the gastroepiploic vessels.