肛门内括约肌与外括约肌皮下部的交界处称A.半月线 B.白线 C.齿状线 D.肛窦

作者: rantiku 人气: - 评论: 0

问题肛门内括约肌与外括约肌皮下部的交界处称

选项 A.半月线 B.白线 C.齿状线 D.肛窦

答案 B

解析直肠与肛管的交界线是齿状线。肛门内括约肌和外括约肌皮下部的交界处是白线。

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