Omentum, Anterior View

Description

Anteriorly, the greater omentum (epiploon) drapes inferiorly from the greater curvature of the stomach like an apron, descending over the jejunoileal loops before reflecting superiorly to blend with the transverse mesocolon along the transverse colon. Superior in the field, the liver occupies the right upper quadrant, with the stomach tucked inferior to its left lobe and the lesser omentum spanning between the liver and the lesser curvature. The large intestine frames the small intestine, with the transverse colon crossing horizontally and the rectum continuing inferiorly in the midline. Peritoneal relationships are emphasized. Continuity between the greater omentum and transverse mesocolon matters in any discussion of peritoneal compartments and surgical planes, because the gastrocolic ligament is commonly divided to enter the lesser sac during distal gastrectomy, pancreatic exposure, or mobilization of the splenic flexure. That same apron-like omental fold helps explain how inflammatory processes can localize, for example, omental adhesion around a perforated peptic ulcer or an inflamed appendix, and why omental infarction can mimic acute appendicitis on clinical exam. It also anchors the teaching distinction between intraperitoneal viscera and mesenteric attachments, a point that becomes concrete when you can track the peritoneal reflections across the transverse colon. Use this artwork in gross anatomy labs, GI block lectures, or surgical education materials to clarify the lesser versus greater sac, the route of the gastrocolic approach, and the peritoneal continuity that underlies internal hernias and postoperative adhesions. It also fits well in atlases and review chapters on peritoneal folds, mesenteries, and omental pathology. Anatomical accuracy verified by SciePro's Medical Advisory Board.