Types of Dysphagia?

Dysphagia is the inability to swallow or difficulty in swallowing. The different types include: dysphagia due to the narrowing of the pharynx or esophagus (d. constricta), dysphagia caused by pressure exerted on the esophagus (d. lusoria), an inability to coordinate chewing and swallowing of food placed in the mouth (oral phase d.), difficulty propelling food from the oral cavity into the esophagus (oropharyngeal d.), dysphagia due to paralysis of the muscles of the esophagus (d. paralytica), aspiration of food into the trachea during the act of swallowing (pharyngeal d.), and dysphagia resulting from a spasm of the pharyngeal or esophageal muscles (d. spastica).