This review provides an integrated overview of esophageal anatomy and the physiology of gastrointestinal motility, as well as the role of ion channels in digestive function. The esophagus is a muscular tube that connects the pharynx to the stomach and facilitates the transport of food via coordinated peristaltic movements. Gastrointestinal motility is regulated by complex neural and hormonal mechanisms to ensure the proper propulsion and mixing of contents within the digestive tract. Recent studies have revealed that ion channels play a critical role in modulating motility, sensation and other esophageal functions. Understanding the interplay between anatomical structures and the role of ion channels is essential for comprehending normal gastrointestinal function and the pathophysiology of motility disorders. This review highlights recent advances in this area of research.