MINOR DUODENAL PAPILLA Meaning and
Definition
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The minor duodenal papilla refers to a small opening or orifice located in the second part of the duodenum of the small intestine. Anatomically, the duodenum is the initial segment of the small intestine that receives partially digested food from the stomach. The minor duodenal papilla is one of the two papillae found in the duodenum, the other being the major duodenal papilla.
Specifically, the minor duodenal papilla is a small circular opening located approximately 2 centimeters above the major duodenal papilla. It serves as an entrance for the accessory pancreatic duct, also known as the duct of Santorini, which is responsible for draining pancreatic secretions into the duodenum. The pancreatic secretions contain enzymes essential for the digestion and absorption of nutrients.
While the major duodenal papilla is more prominent and serves as the primary opening for both the pancreatic and common bile ducts, the minor duodenal papilla is smaller and exclusively accommodates the accessory pancreatic duct. This additional pancreatic drainage pathway allows for efficient regulation of pancreatic secretions and ensures proper digestion within the duodenum.
Understanding the anatomy and function of the minor duodenal papilla is crucial in diagnosing and treating conditions such as pancreatitis, pancreatic stones, and other disorders related to pancreatic secretions and the drainage system into the duodenum.
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