Term Name: | external anal sphincter |
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Synonyms: | external sphincter ani, musculus sphincter ani externus, sphincter ani externus |
Definition: | The Sphincter ani externus (external anal sphincter) is a flat plane of muscular fibers, elliptical in shape and intimately adherent to the integument surrounding the margin of the anus. [WP,unvetted]. |
Ontology: | Uberon Ontology [UBERON:0001367] |