Multiple choice Which of the following functions is performed by the sphincter of Oddi? It prevents the entry of food back up the esophagus. It mediates movement of small intestine contents into the large intestine. It allows the content of stomach into duodenum. It controls the flow of digestive juices from ampulla of vater to the second part of duodenum. Reveal answer Fill a bubble to check yourself D Correct answer Explanation Correct Answer: It controls the flow of digestive juices from ampulla of vater to the second part of duodenum.