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Internal anal sphincter
Other Terms:
Circular layer of anal muscularis externa,
Circular layer of muscularis externa of anal canal,
Circular layer of muscularis propria of anal canal,
Circular muscle layer of anal canal,
Musculus sphincter ani internus,
Sphincter interne de l'anus
Latin
Musculus sphincter ani internus
French
Sphincter interne de l'anus