NOUN | body | anal sphincter, sphincter ani, musculus sphincter ani | the sphincter muscle of the anus |
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Meaning | The sphincter muscle of the anus. | |
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Synonyms | sphincter ani, musculus sphincter ani | |
Part of | anus | The excretory opening at the end of the alimentary canal |
Parts | musculus sphincter ani externus | An external ring of striated muscle surrounding the anus |
musculus sphincter ani internus | An internal ring of smooth muscle formed by circular fibers of the rectum | |
Broader | sphincter, anatomical sphincter, sphincter muscle | A ring of muscle that contracts to close an opening |
Spanish | esfinter anal, esfínter anal, esfínter del ano | |
Catalan | esfínter anal, esfínter de l'anus |
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