Many sphincters line the esophageogastrointestinal tract.
In addition to obvious local roles, knowledge of the different interactions allows a better understanding of certain functional disorders.
For example, physiologically, rectal distension reduces peristalsis of the esophagus and stomach, closes the pylorus, in a word, slows down emptying of the stomach but also slows down the whole transit.
This reflex is called the «recto-oesophageal-gastric reflex » (Surg IShafik A1, El-Sibai. 2000;1(5):373-9. PMID: 11341593 [PubMed - indexed for MEDLINE].
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