Search on: ESOPHAGEAL SPHINCTER, LOWER 
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Descriptor English:   Esophageal Sphincter, Lower 
Descriptor Spanish:   Esfínter Esofágico Inferior 
Descriptor Portuguese:   Esfíncter Esofágico Inferior 
Synonyms English:   Sphincter, Lower Esophageal
Lower Esophageal Sphincter  
Tree Number:   A02.633.570.210
A03.556.875.500.414.350
A03.556.875.875.330.350
Definition English:   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) 
Indexing Annotation English:   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
See Related English:   Gastroesophageal 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
UL ultrastructure VI virology
Record Number:   38422 
Unique Identifier:   D049630 

Occurrence in VHL: 		 

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