rectosigmoid sphincter

(redirected from O'Beirne valve)

rec·to·sig·moid sphinc·ter

a circular band of muscular fibers at the rectosigmoid junction.
Synonym(s): O'Beirne sphincter, O'Beirne valve, pelvirectal sphincter

O'Bierne,

James, Irish surgeon, 1786-1862.
O'Bierne sphincter - a circular band of muscular fibers at the rectosigmoid junction. Synonym(s): rectosigmoid sphincter
O'Bierne tube
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