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rectosigmoid sphincter


Definition: a circular band of muscular fibers at the rectosigmoid junction.

Synonym(s): O'Beirne sphincter, O'Beirne valve, pelvirectal sphincter

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.