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The endoscopist who examines the esophagus evaluates a muscular tube whose primary function is to convey swallowed material from the mouth to the stomach. The esophagus is approximately 25 cm in length measured from its origin in the neck just below…
The esophagus actively transports solids and liquids from the pharynx to the stomach. It has no digestive, absorptive, metabolic, or endocrine functions. A muscular tube subtended by two sphincters performs this rudimentary transfer task. Despite simplicity in esophageal function and…