[The esophagus, its motility and receptors].
D000818:Animals; D004943:Esophagogastric Junction / Q000502:physiology*; D004947:Esophagus / Q000187:drug effects / Q000502:physiology*; D005769:Gastrointestinal Motility; D006801:Humans
El esófago, su motilidad, receptores e incógnitas.