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| posterior cubital triangle (肘关节屈至直角时，肱骨内上髁与肱骨外上髁和尺骨鹰嘴形成一尖向下的等腰三角形。肘关节伸直时，三者位于同一直线上。当肘关节脱位时,三者的位置关系发生改变) | |||
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