肛门直肠的血液供应主要来自除外下列哪一动脉：A．阴部内动脉B．直肠下动脉C．直肠上动脉D．肛门动脉E．骶中动脉

作者: rantiku 人气: - 评论: 0

问题肛门直肠的血液供应主要来自除外下列哪一动脉：

选项 A．阴部内动脉 B．直肠下动脉 C．直肠上动脉 D．肛门动脉 E．骶中动脉

答案 A

解析

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