The Sphincter of O ’Beirne – Part 1: Study of 18 Normal Subjects

ConclusionsThe rectosigmoid junction is a functional sphincter that should be referred to as the sphincter of O ’Beirne; it is part of the “braking mechanism,” contributing to continence by keeping content away from the rectum. In an accompanying case report, we show that its excessive presence in a patient with severe constipation can be a primary pathophysiology.
Source: Digestive Diseases and Sciences - Category: Gastroenterology Source Type: research