Wilson muscle


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Wil·son mus·cle

(wil'sŏn),
2. certain fibers of the levator ani.

ex·ter·nal u·re·thral sphinc·ter mus·cle

(eks-tĕr'năl yūr-ē'thrăl sfingk'tĕr mŭs'ĕl)
Action, constricts membranous urethra to retain urine in bladder; nerve supply, pudendal.
Synonym(s): Guthrie muscle, musculus constrictor urethrae, musculus sphincter urethrae externus, sphincter muscle of urethra, sphincter urethrae externus, Wilson muscle.

Wilson,

James, English anatomist, physiologist, and surgeon, 1765-1821.
Wilson muscle - (1) certain fibers of the levator ani; - (2) Synonym(s): sphincter urethrae