Final answer:
The point where pancreatic digestive secretions and the common bile duct empty into the duodenum is known as the hepatopancreatic sphincter or sphincter of Oddi.
Step-by-step explanation:
The pancreatic digestive secretions empty into the duodenum at the same point as the common bile duct, which is the hepatopancreatic sphincter (also known as the sphincter of Oddi). This sphincter regulates the flow of bile and pancreatic juice into the duodenum, ensuring that it happens in a controlled manner so the digestive enzymes and bile can mix with the chyme effectively for digestion.
Other sphincters and valves like the pyloric sphincter, ileocecal valve, and cardiac sphincter serve different functions within the digestive system. The pyloric sphincter separates the stomach from the duodenum, allowing chyme to pass through. The ileocecal valve is located at the junction of the ileum and the large intestine, and the cardiac sphincter, also known as the lower esophageal sphincter, is at the junction of the esophagus and the stomach.