The esophageal sphincters are bands of muscles at the top and bottom of the esophagus — the muscular tube that passes food and drink from the mouth to the stomach. Esophageal sphincters open and close ...

The esophagus is a tubular, elongated organ that plays an important role in transporting food and liquids to the stomach. Several conditions can negatively affect the esophagus, including acid reflux, ...

Esophageal diverticulum is a fairly rare condition. Treatment is usually only needed if you have other underlying conditions or it becomes severe. Here’s what you need to know. A diverticulum is a ...

Timely and efficient upper esophageal sphincter (UES) opening may be critical to safe transport of food or liquid to the stomach and to prevent aspiration during the swallow. The purpose of this study ...

The upper esophageal sphincter (UES) closure muscles include the cervical esophagus, cricopharyngeus, and inferior pharyngeal constrictor, but primarily the cricopharyngeus. The main functions of UES ...