Structured Summary
Abstract
The structure at the pharyngoesophageal junction consisting chiefly of the cricopharyngeus muscle. It normally occludes the lumen of the ESOPHAGUS, except during SWALLOWING.
MeSH Record
Classification
Broader headings
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See Also
MeSH Record
Synonyms
12 entry terms
- Esophageal Sphincter, Upper
- Sphincter, Upper Esophageal
- Cricopharyngeus
- Cricopharyngeus Muscle
- Inferior Constrictor of Pharynx
- Inferior Pharyngeal Constrictor
- Thyropharyngeus
- Inferior Pharyngeal Constrictors
- Muscle, Cricopharyngeus
- Pharyngeal Constrictor, Inferior
- Pharyngeal Constrictors, Inferior
- Pharynx Inferior Constrictor
MeSH Record
Aspects Covered
24 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, transplantation, ultrastructure, virology.
MeSH Record
Indexing Annotation
diseases: coordinate IM with ESOPHAGEAL DISEASES (IM) or specific esophageal disease (IM); neoplasms: coordinate IM with ESOPHAGEAL NEOPLASMS (IM)
MeSH Record
History Note
2005; for CRICOPHARYNGEUS and INFERIOR CONSTRICTOR OF PHARYX use PHARYNGEAL MUSCLES 2005-2019
MeSH Record
Previous Indexing
- Esophagus (1966-2004)
MeSH Hierarchy
Tree Numbers
AMA Style
References
- National Library of Medicine. Upper Esophageal Sphincter. Medical Subject Headings (MeSH). 2026. Unique ID D049631. http://id.nlm.nih.gov/mesh/2026/D049631
- Upper Esophageal Sphincter. In: Wikipedia. https://en.wikipedia.org/wiki/Upper_esophageal_sphincter
- Upper Esophageal Sphincter. In: Wikidata. https://www.wikidata.org/wiki/Q1407428