Where the duodenum is, in 3D
The duodenum is the first part of the small intestine, right after the stomach, where pancreatic juice and bile enter. It is part of the small intestine and belongs to the digestive system. It curves in a C shape around the head of the pancreas and is about 25 cm long. It has four parts (superior, descending, horizontal and ascending), and the bile duct and pancreatic duct open at the major duodenal papilla in the descending part.
Frequently asked questions
Which body system does the duodenum belong to?
The duodenum belongs to the digestive system. The digestive system is made up of the digestive tract running from mouth to anus (oesophagus, stomach, small and large intestine) and the liver, gallbladder and pancreas, which make digestive juices and send them into the tract.
What else can you see alongside the duodenum?
The BAHI BODY 3D model of the small intestine also shows the jejunum and ileum.
Where is the small intestine?
The small intestine is the long tube between the stomach and the large intestine, running through the duodenum, jejunum and ileum.
Where does the name duodenum come from?
From the Latin for "twelve finger-breadths", roughly its length.
Other parts of the small intestine
Wider view
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Related reading
Once the 3D model loads you can turn it and select each part.