Which part of the alimentary canal in human beings receives the secretions of liver and pancreas through a common duct ?

In the human digestive system, the duodenum is the first part of the small intestine and serves as the primary site for chemical digestion. It receives secretions from both the liver and the pancreas through a shared pathway [t4][t8]. Specifically, the common bile duct (carrying bile from the liver and gallbladder) and the main pancreatic duct (carrying pancreatic juice) join to form the hepatopancreatic ampulla, also known as the ampulla of Vater [t1][t2]. This ampulla is located within the wall of the descending part of the duodenum [t6]. The release of these digestive fluids into the duodenal lumen is regulated by the sphincter of Oddi, which ensures that bile and enzymes are available to neutralize stomach acid and break down fats, proteins, and carbohydrates as food enters from the stomach [t1][t4][t5].

Sources

1. [1] https://www.ncbi.nlm.nih.gov/books/NBK532912/