Final answer:
The anatomical term of the ampulla located in the duodenum that is important for ERCP procedures is the hepatopancreatic ampulla (ampulla of Vater).
Step-by-step explanation:
The anatomical term for the ampulla located in the duodenum that is important for ERCP procedures is hepatopancreatic ampulla (ampulla of Vater).
Located in the duodenal wall, the hepatopancreatic ampulla marks the transition from the anterior portion of the alimentary canal to the mid-region, and is where the bile duct and the main pancreatic duct join. This ampulla opens into the duodenum at a structure called the major duodenal papilla.
The hepatopancreatic sphincter regulates the flow of both bile and pancreatic juice from the ampulla into the duodenum.