external anal sphincter muscle

(redirected from external sphinctermuscle of anus)

ex·ter·nal a·nal sphinc·ter mus·cle

(eks-tĕr'năl ā'năl sfingk'tĕr mŭs'ĕl)
Fusiform ring of striated muscular fibers surrounding anus, attached posteriorly to the coccyx and anteriorly to the central tendon of the perineum.
Synonym(s): external sphincter muscle of anus, musculus sphincter ani externus.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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