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puborectalis (muscle)


Definition: the medial part of the pubococcygeus muscle (levator ani) that passes from the body of the pubis around the posterior aspect of the anus to form a muscular sling at the level of the anorectal junction; it contracts to increase the anorectal (perineal) flexure during a peristalsis to maintain fecal continence and relaxes to allow defecation.

Synonym(s): musculus puborectalisTA, Braune muscle, puborectal muscle

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