Major duodenal papilla
Encyclopedia
The common bile duct
and the pancreatic duct
together perforate the medial side of the second portion of the duodenum
obliquely, some 7 to 10 cm below the pylorus
, forming a structure called the major duodenal papilla.
The accessory pancreatic duct sometimes pierces it about 2 cm above and slightly in front of these.
Common bile duct
The common bile duct is a tube-like anatomic structure in the human gastrointestinal tract. It is formed by the union of the common hepatic duct and the cystic duct . It is later joined by the pancreatic duct to form the ampulla of Vater...
and the pancreatic duct
Pancreatic duct
The pancreatic duct, or duct of Wirsung , is a duct joining the pancreas to the common bile duct to supply pancreatic juices which aid in digestion provided by the "exocrine pancreas"...
together perforate the medial side of the second portion of the duodenum
Duodenum
The duodenum is the first section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear and the terms anterior intestine or proximal intestine may be used instead of duodenum...
obliquely, some 7 to 10 cm below the pylorus
Pylorus
The pylorus is the region of the stomach that connects to the duodenum . It is divided into two parts:* the pyloric antrum, which connects to the body of the stomach.* the pyloric canal, which connects to the duodenum....
, forming a structure called the major duodenal papilla.
The accessory pancreatic duct sometimes pierces it about 2 cm above and slightly in front of these.
See also
- Sphincter of OddiSphincter of OddiThe sphincter of ampulla or sphincter of Oddi is a muscular valve that controls the flow of digestive juices through the ampulla of Vater into the second part of the duodenum. It is named after Ruggero Oddi...
- Common bile ductCommon bile ductThe common bile duct is a tube-like anatomic structure in the human gastrointestinal tract. It is formed by the union of the common hepatic duct and the cystic duct . It is later joined by the pancreatic duct to form the ampulla of Vater...
- Pancreatic ductPancreatic ductThe pancreatic duct, or duct of Wirsung , is a duct joining the pancreas to the common bile duct to supply pancreatic juices which aid in digestion provided by the "exocrine pancreas"...
- Ampulla of Vater