FRANCOIS L'HOPITAL, ISM / SCIENCE PHOTO LIBRARY FRANCOIS L'HOPITAL, ISM / SCIENCE PHOTO LIBRARY
Duodenum and major duodenal papilla. Endoscope view of a normal duodenum, the first part of the small intestine. At top left is the major duodenal papilla, an opening of the pancreatic duct into the duodenum. Bile and other enzymes are secreted through this opening to aid digestion.
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