Search on: UPPER ESOPHAGEAL SPHINCTER 
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Descriptor English:   Esophageal Sphincter, Upper 
Descriptor Spanish:   Esfínter Esofágico Superior 
Descriptor Portuguese:   Esfíncter Esofágico Superior 
Synonyms English:   Sphincter, Upper Esophageal
Upper Esophageal Sphincter  
Tree Number:   A02.633.567.800.360
A03.556.875.500.360
A04.623.617.360
A14.724.617.360
Definition English:   The structure at the pharyngoesophageal junction consisting chiefly of the CRICOPHARYNGEUS MUSCLE. It normally occludes the lumen of the ESOPHAGUS, except during SWALLOWING. 
Indexing Annotation English:   diseases: coordinate IM with ESOPHAGEAL DISEASES (IM) or specific esophageal disease (IM); neoplasms: coordinate IM with ESOPHAGEAL NEOPLASMS (IM)
See Related English:   Laryngopharyngeal Reflux
 
History Note English:   2005 
Allowable Qualifiers English:  
AB abnormalities AH anatomy & histology
BS blood supply CH chemistry
CY cytology DG diagnostic imaging
DE drug effects EM embryology
EN enzymology GD growth & development
IM immunology IN injuries
IR innervation ME metabolism
MI microbiology PS parasitology
PA pathology PH physiology
PP physiopathology RE radiation effects
SE secretion SU surgery
TR transplantation UL ultrastructure
VI virology  
Record Number:   38421 
Unique Identifier:   D049631 

Occurrence in VHL: 		 

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