An update on the physiology of the components of the upper esophageal sphincter

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1994 English Publisher:Springer Science and Business Media LLCJournal:Dysphagia, volume 9, pages 229-232 (issn: 0179-051X, eissn: 1432-0460,

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Authors: I M, Lang; R, Shaker;

doi: 10.1007/bf00301915

pmid: 7805421

An update on the physiology of the components of the upper esophageal sphincter

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Abstract

The upper esophageal sphincter is composed of both opening and closing muscles. The opening muscles include the thyrohyoideus and the geniohyoideus, and the closing muscles include the cricopharyngeus, thyropharyngeus, and cervical esophagus. The relative contribution of each muscle to the opening and closing of the UES varies with the physiologic state. Although the cricopharyngeus may be the primary muscle of the UES, it cannot account for all of the observed functions of the UES.

Related Organizations

Medical College of Wisconsin
United States
Veterans Health Administration
United States

Keywords

Respiration, Posture, Humans, Esophagogastric Junction, Arousal, Deglutition Disorders, Deglutition

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