The main pancreatic duct merges with the common bile duct at the hepatopancreatic ampulla, which enters the wall of the duodenum at a major papilla (of Vater); the accessory pancreatic duct enters the duodenum at a minor papilla. Bile and pancreatic juices are mixed before release into the duodenal lumen. Source: Chapter 16. Organs Associated with the Digestive Tract, Junqueira’s Basic Histology, 13e Citation: Mescher AL. Junqueira’s Basic Histology, 13e; 2013 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/mesc13/mesc13_c016f019.png&sec=42526855&BookID=574&ChapterSecID=42524602&imagename= Accessed: October 10, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved