Structured Summary
Abstract
The physiologic or functional barrier to GASTROESOPHAGEAL REFLUX at the esophagogastric junction. Sphincteric muscles remain tonically contracted during the resting state and form the high-pressure zone separating the lumen of the ESOPHAGUS from that of the STOMACH. (Haubrich et al, Bockus Gastroenterology, 5th ed., pp399, 415)
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Synonyms
5 entry terms
- Esophageal Sphincter, Lower
- Gastroesophageal Sphincter
- Gastroesophageal Sphincters
- Sphincter, Gastroesophageal
- Sphincter, Lower Esophageal
MeSH Record
Aspects Covered
23 allowable subheadings
Indexed with the subheadings abnormalities, anatomy & histology, blood supply, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, innervation, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, ultrastructure, virology.
MeSH Record
Indexing Annotation
diseases: coordinate IM with ESOPHAGEAL DISEASES (IM) or specific esophageal disease (IM); neoplasms: coordinate IM with STOMACH NEOPLASMS (IM) or ESOPHAGEAL NEOPLASMS (IM) depending on text
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History Note
2005
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Previous Indexing
- Esophagogastric Junction (1966-2004)
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NLM Classification
WI 250
AMA Style
References
- National Library of Medicine. Lower Esophageal Sphincter. Medical Subject Headings (MeSH). 2026. Unique ID D049630. http://id.nlm.nih.gov/mesh/2026/D049630
- Lower Esophageal Sphincter. In: Wikidata. https://www.wikidata.org/wiki/Q3958693