肛孔
- 网络anal pore
肛孔-
肛孔在腹侧，呈新月形，位于尾突基部向前约90μm处。
The ventrally located crescent anus is situated about 90 μ m from the base of the mucron .
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对照组在静态及动态时髂尾肌、耻尾肌、耻直肌面积及肛提肌裂孔宽度均无显著差异（P0.05）。
There were not significant diference of the dynamic and static areas of iliococcygeus , pubococcygeus and puborectalis , the widths of levator hiatus in control groups ( P0.05 ) . 3 .