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在制作一成人上肢血管神经标本时,见其第1指掌侧总动脉起于桡动脉,伴拇主要动脉走行异常,查阅相关文献,未见此类报道,现报道如下:桡动脉绕桡骨茎突,经拇指的三条长肌腱深面至手背,在手背浅面走行2.12cm后,在第1掌间背侧肌浅面呈46°发出拇主要动脉,分支前外径2.20 mm,分支后外径1.72 mm。本干穿第一骨间背侧肌至深面,切开第1骨间背侧肌,见其向前走行1.08 cm发出2支:1支垂直进入手掌深面,参与构成掌深弓;另1支为变异支,其外径1.58 mm,沿第2掌骨掌面,由
In the production of an adult upper extremity vascular nerve specimens, see the first finger of the common carotid artery in the radial artery, with the main arterial anomalies in the thumb, access to relevant literature, no such reports are reported as follows: Radial artery around the radial stem Suddenly, the three long tendons through the thumb deep to the back of the hand, walking in the back of the dorsal shallow 2.12cm, the first dorsal palmar muscle 46 ° issued the main arteries of the thumb, the branch before the outer diameter of 2.20 mm, after the branch Diameter 1.72 mm. The dry wear the first interosseous dorsal muscle to the deep, cut open the first interosseous dorsal muscle, see it moving forward 1.08 cm issued two: 1 vertical into the palm of the deep, to form the palm of the deep bow; the other 1 branch of variation, its outer diameter 1.58 mm, along the palm of the second metacarpal, by