下列关于直肠解剖的论述,正确的是:A.直肠是直的,故称直肠B.直肠在腹腔之外C.直肠起源于内胚层D.直肠全长约15cmE.直肠下方终于肛管

作者: rantiku 人气: - 评论: 0
问题 下列关于直肠解剖的论述,正确的是:
选项 A.直肠是直的,故称直肠 B.直肠在腹腔之外 C.直肠起源于内胚层 D.直肠全长约15cm E.直肠下方终于肛管
答案 C
解析

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