musculus sphincter ani externus(redirected from External anal sphincter muscle)
Also found in: Thesaurus, Medical.
Related to External anal sphincter muscle: External urethral sphincter, Sphincter ani externus muscle
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|Noun||1.||musculus sphincter ani externus - an external ring of striated muscle surrounding the anus|
skeletal muscle, striated muscle - a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes