See Also: external sphincter muscle of anus(medicine)
internal sphincter muscle of anus(medicine)
External urethral sphincter muscle(health)
elevator muscle of anus(medicine)
corrugator cutis muscle of anus(medicine)
external anal sphincter(medicine)
external urethral sphincter(medicine)
superficial part of external anal sphincter(medicine)
deep part of external anal sphincter(medicine)
subcutaneous portion of external anal sphincter(medicine)

external sphincter muscle of anus (medicine)


external sphincter muscle of anus -->
external anal sphincter


A fusiform ring of striated muscular fibres surrounding the anus, attached posteriorly to the coccyx and anteriorly to the central tendon of the perineum; it is subdivided, often indistinctly, into a subcutaneous part, a superficial part and a deep part for descriptive purposes.

Synonym: musculus sphincter ani externus, external sphincter muscle of anus.