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| superior lumbar triangle (位于背阔肌深面,第12肋下方。内侧界为竖脊肌外侧缘，外下界为腹内斜肌后缘，上界为第12肋。有时，由于下后锯肌在12肋的附着处与腹内斜肌后缘相距较近，可参与构成一个边，形成不等的四边形。底为腹横肌腱膜的起始部，腱膜深面有3条与第12肋平行排列的神经，自上而下为肋下神经、骼腹下神经和骼腹股沟神经,腱膜的前方有腰方肌和肾。肾手术的腹膜外入路需经此三角，切开腹横肌腱膜时应注意保护上述神经。腰上三角是腹后壁的薄弱区之一,腹腔器官可经此处向后突出，形成腰疝) | |||
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腰上三角 : 1 phrase in 1 subject |
| Surgery | 1 |
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