Note in this example that the pharyngeal response is very feeble, giving rise to low amplitude synchronous pressure waves within the pharynx. There is very poor clearance of the swallowed bolus ...

Another study aimed to establish a methodology for diagnosing upper esophageal sphincter (UES) and pharyngeal motor disorders using HRM. The researchers compared 509 patients with controls and ...

ACCORDING to Templeton and Kredel, 1 "The ericopharyngeus muscle is a true sphincter which can be easily demonstrated at Roentgenologic examination. When the Valsalva test is performed ...

GERD affects the lower sphincter (muscular ring) in the esophagus, and LPR affects the upper esophageal sphincter. LPR is ...

Heartburn, also known as acid indigestion, is a burning sensation in the chest caused by stomach acid backing up into the esophagus. This occurs when the lower esophageal sphincter (LES ...