It is a plastinated swine stomach.

The greater curvature is clearly visible as the dominant convex border, and in the proximal region a well-defined gastric diverticulum (diverticulum ventriculi), characteristic of the pig, can be seen adjacent to the fundus.

The stomach narrows towards the pyloric portion, continuing into a short segment of the proximal duodenum.

• Species-specific landmark: the gastric diverticulum is a key porcine feature and helps orient the fundic region relative to the rest of the stomach.
• Regional anatomy: appreciate the gross separation of fundus/body versus pyloric region, and how the stomach narrows approaching the pylorus and duodenum.
• External topographical orientation: use the greater curvature as a guide to the overall morphology and the site of omental attachment

• Clinical orientation drills: have students trace the route esophagus → cardia → fundus/body → pylorus → duodenum, reinforcing where obstructions, ulcers, or foreign bodies would be expected clinically.
• Comparative anatomy: contrast the porcine stomach (including the diverticulum ventriculi) with dog/ruminant stomachs to train rapid species recognition in imaging and surgery.
• Surgical landmarks: use the external morphology to discuss approaches to the pyloric outflow and proximal duodenum, emphasizing safe identification of regions before any enterotomy/gastrotomy planning.