Posterior Color Differentiation of the Anatomical Stomach Regions

Description

Posterior gastric anatomy is presented from a dorsal perspective, with color blocks distinguishing the cardia, fundus, corpus (body), antrum pyloricum, and pylorus along the lesser and greater curvatures. Superiorly, the fundus rises to the left of the cardia, while the corpus descends inferiorly toward the antrum, which narrows medially into the pyloric canal. The posterior wall relationships are implied by this orientation: the lesser curvature lies more medial and superior, and the greater curvature sweeps lateral and inferior as it approaches the pyloric region. Clean regional boundaries. For teaching, the posterior surface matters because it is the surface that rests on the stomach bed, where surgical dissection and posterior gastric pathology meet adjacent organs. On this side, the pancreas sits posterior to the stomach with the lesser sac (omental bursa) interposed, and posterior gastric ulcers can penetrate into the pancreas and present as back pain rather than classic epigastric tenderness. This mapping also supports procedural conversations around vagotomy and pyloroplasty, where identifying the antrum and pylorus and their junction with the corpus guides where motor function transitions toward gastric emptying. Use this color-differentiated stomach region plate in gross anatomy and GI teaching sessions to reinforce Terminologia Anatomica divisions (gaster, ventriculus) and to keep pyloric anatomy straight when students move between cadaveric dissection, endoscopic descriptions, and operative notes. It also fits well in publisher layouts covering peptic ulcer disease, partial gastrectomy margins, or the surgical anatomy of the lesser sac approached through the gastrocolic ligament. Anatomical accuracy verified by SciePro's Medical Advisory Board.