睫状前动脉自肌腱穿出后,仅有1条分支的眼外肌是A.上斜肌B.上直肌C.下直肌D.外直肌E.内直肌

作者: rantiku 人气: - 评论: 0
问题 睫状前动脉自肌腱穿出后,仅有1条分支的眼外肌是
选项 A.上斜肌 B.上直肌 C.下直肌 D.外直肌 E.内直肌
答案 D
解析 :睫状前动脉由4条直肌的肌动脉而来,眼动脉的肌支共7支,除外直肌只有1支供应外,其余直肌均有2条。

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