What controls the flow of chyme from the stomach to the small intestine?

Answer 1

Release of Cholecystokinin(CCK), a neuropeptide, controls the flow of chyme into the small intestine from the stomach.

Answer 2

Pyloric Sphincter. The pyloric sphincter is a band of smooth muscle at the junction between the pylorus of the stomach and the duodenum of the small intestine. It plays an important role in digestion, where it acts as a valve to controls the flow of partially digested food from the stomach to the small intestine.