Exploration of liver, gall bladder, pancreas, duodenum and spleen

Dissection of duodenum; interior of pars descendens; duodenal papillae

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Image #147-3

Exploration of liver, gall bladder, pancreas, duodenum and spleen

Dissection of duodenum; interior of pars descendens; duodenal papillae

The descending part of the duodenum has been opened along its convex border and its anterior wall has been elevated.

1. Plica circularis (in descending part of duodenum)
2. Minor duodenal papilla (opening of accessory duct not distinct)
3. Upper pointer: Major duodenal papilla (pointer on openings of common bile duct and pancreatic duct) Lower pointer: Longitudinal duodenal fold (forming frenulum of duodenal papilla)
4. Muscular layer of duodenum (pointer on cut edge of a circular fold)
5. Muscular layer of duodenum (pointer indicates circular fibers)
6. Pancreatic duct
7. Accessory pancreatic duct
8. Superior mesenteric artery
9. Prominent hood-like plica circularis overlying major duodenal papilla
10. Inferior pancreaticoduodenal artery
11. Horizontal part of duodenum