sphincter ani

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Noun

sphincter ani - the sphincter muscle of the anus

anal sphincter, musculus sphincter ani

anus - the excretory opening at the end of the alimentary canal

anatomical sphincter, sphincter, sphincter muscle - a ring of muscle that contracts to close an opening

musculus sphincter ani externus - an external ring of striated muscle surrounding the anus

musculus sphincter ani internus - an internal ring of smooth muscle formed by circular fibers of the rectum

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References in periodicals archive ?

Early repair of an external sphincter ani muscle and rectal mucosal dehiscence.

Management of wound complications following obstetric anal sphincter injury (OASIS): the 3 steps described here-demonstrating the modern approach to managing an infected wound dehiscence following a severe perineal injury-can put patients on the path to full health

The importance of siting the pulled-through rectum accurately and symmetrically in the sphincter ani at primary operation is stressed, as fecal incontinence can occur with asymmetrical placement.

Magnetic resonance evaluation of anorectal malformation cases treated by posterior sagittal anorectoplasty

"They say man has succeeded where the animal fails because of the clever use of his hands, yet when compared to the hands, the sphincter ani (anal sphincter) is far superior.