A．提肛肌B．肛管直肠环C．外括约肌D．内括约肌E．膀胱颈部肌肉切断易导致肛门失禁的是：

作者: rantiku 人气: - 评论: 0

问题 A．提肛肌 B．肛管直肠环 C．外括约肌 D．内括约肌 E．膀胱颈部肌肉切断易导致肛门失禁的是：

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答案 B

解析

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