Answer :
Final answer:
Pancreatic juice, comprised of digestive enzymes and bicarbonate produced by the pancreas, enters the small intestine at the duodenum. It does so via the hepatopancreatic ampulla, which controls the release of pancreatic juice and bile.
Explanation:
Pancreatic juice is produced by the pancreas, which is loaded with enzymes and bicarbonate that aid digestion. This pancreatic juice enters the small intestine in the duodenum section through a structure known as the hepatopancreatic ampulla.
The human small intestine is made up of three parts: the duodenum, the jejunum, and the ileum, of which the duodenum is the part that initially receives pancreatic juice. The ducts of the pancreas deliver the bicarbonate-rich solution to this area, neutralizing the acidic chyme originated from the stomach and facilitating enzymatic digestion.
Two types of pancreatic ducts are identified, the main and the accessory duct. The main pancreatic duct merges with the common bile duct, forming the hepatopancreatic ampulla, which has a controlling sphincter muscle. Its role is to modulate the release of pancreatic juice and bile into the duodenum. The accessory duct, also known as the duct of Santorini, runs directly from the pancreas into the duodenum.
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