Anatomically, swallowing has been divided into three phases: oral, pharyngeal, and esophageal. The oral phase includes preparatory as well as early transfer phases. The oral preparatory phase ...

Functional Disturbances in the Pharyngeal Phase Functional disturbances in ... poor relaxation of the upper esophageal sphincter, aspiration) phases of deglutition. Many diseases of the ...

Swallowing is a complex process involving four specific phases: oral preparatory, oral, pharyngeal and esophageal. In the oral preparatory phase, food enters the oral cavity requiring adequate ...

Pharyngeal dysphagia ... This phase takes less than half a second. Esophageal dysphagia. The third phase starts when food enters the esophagus. The esophagus, which is about 9 inches long ...

Comparatively, esophageal dysphagia involves part of ... causes difficulty with chewing and moving the food into the throat area. Pharyngeal phase dysphagia causes difficulty with the swallowing ...

Perforation of the posterior pharyngeal wall during or immediately after delivery produced symptoms of esophageal atresia and traumatic diverticulums of the pharynx in two newborn infants.