Methods: The muscular branches originating from the three parts(radial tunnel part, supinator tunnel part and post-tunnel part) of PIN were observed on 30 sides upper limb specimens.The dimensions and morphology of the radial tunnel, supinator tunnel and the arcade of extensor carpi radialis brevis muscle were observed and measured with caliper, and the surface projection of the entrance and exit of the ST were located.

30側(cè)尸體上肢標本，將PIN分為3段(即橈管段xxxxx黄、旋后肌管段和旋后肌管后段)觀察其肌支的分支情況呦呦资源在线；用卡尺對橈管、旋后肌管和橈側(cè)腕短伸肌腱弓的形態(tài)和大小進行了觀測我想看黄片儿一级片一区二区，并對ST入口和出口的體表投影定位www.欧美专线电影。