| Sphincter ani internus muscle structure (body structure) | | Sphincter ani internus muscle structure | | Circular layer of muscularis propria of anal canal
Sphincter ani internus muscle
| | structuur van musculus sphincter ani internus | | musculus sphincter ani internus
| | interne sfincter | | De binnenste kringspier van de anus (het poepgat). |
| | Id | 82961008 | | Status | Primitive |
| ICD-O simple map reference set | C21.1 |
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