This article reviews the basic physiology of foregut motility as well as the evaluation and clinical spectrum of gastric and small intestinal motor disorders. The limitations of symptoms as predictors of dysmotility and the problems that surround the definition of these disorders are emphasized. The principal clinical syndromes considered to reflect disturbed foregut motor function are presented. The role of motility in the pathogenesis of functional as well as the more clearly defined disorders of gastrointestinal nerve and muscle is discussed.
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