Duodenum, Pancreas, Liver, and Gallbladder, Anterior View

Description

Dominating the right upper quadrant, the liver is presented anteriorly with its inferior margin draping over the proximal duodenum and the head of the pancreas. Nestled on the visceral (inferior) surface of the right hepatic lobe, the gallbladder (vesica biliaris) sits inferior to the hepatic parenchyma, its fundus projecting anteroinferiorly. Inferior and slightly medial, the pancreas runs transversely, with a broadened head embraced by the C-shaped curve of the duodenum and a body extending leftward. Ductal continuity is implied at the medial wall of the second part of the duodenum, where the common bile duct and main pancreatic duct typically converge toward the major duodenal papilla. An anterior arrangement like this is the clearest way to teach the hepatopancreatobiliary crossroads where biliary obstruction and pancreatitis intersect. A gallstone lodged at the distal common bile duct or ampulla can block both bile flow and pancreatic exocrine outflow, producing jaundice with right upper quadrant pain and, in a subset, gallstone pancreatitis. Surgeons and gastroenterologists also use these spatial cues when planning cholecystectomy (Calot triangle orientation) or endoscopic access during ERCP, where the second part of the duodenum provides the working corridor to the papilla. Use this plate for gross anatomy practicals on foregut derivatives, GI physiology modules covering hepatic bile production and pancreatic endocrine versus exocrine function, and clinical teaching on biliary colic, acute cholecystitis, choledocholithiasis, and pancreatic head pathology compressing the distal bile duct. It also fits well in patient-facing education for gallbladder disease or pre-procedure counseling for ERCP and laparoscopic cholecystectomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.