What sphincter separates the esophagus and the stomach?

Question

Quizplus · Accepted Answer

The term "gastroesophageal" refers to the junction between the stomach and the esophagus, where the lower esophageal sphincter (LES) prevents stomach contents from refluxing into the esophagus. Therefore, option D accurately describes the region that separates the esophagus and the stomach. Option A ("esophagealgastric") and option B ("pyloric") refer to other regions of the gastrointestinal tract, while option C ("nasopharynx") is a completely different anatomical area located in the upper respiratory tract.

What Sphincter Separates the Esophagus and the Stomach