The sphincters of Oddi are muscles located at the bottom of the esophagus. The main task of these muscles is to remove food from the stomach into the duodenum, since their location allows them to capture food lumps and move towards the intestines. However, in certain diseases they can cause disruption in the process of swallowing food and digestion. In this regard, doctors, if it is necessary to eliminate digestive problems, must have information about their work and the causes of disorders.