作者作了50例解剖,发现正中神经的解剖配布与经典的描述一致的仅14例(28％)。其终支很少呈经典的五支。主要变异有三型:Ⅰ型:(40例),正中神经分为等大的两个干,外侧干发到拇指的外侧支和第一骨间总神经,内侧干发出第二、第三指掌侧总神经;Ⅱ型:6例),外侧干发到拇指的外侧支,内侧干发第三指掌侧总神经;Ⅲ型 The authors made 50 anatomic examples and found that the anatomy of the median nerve was deployed in just 14 cases (28%) consistent with the classic description. The final support is rarely the classic five. There are three main types of variation: type I: (40 cases), the median nerve is divided into two large and equal dry, lateral dry hair to the lateral branch of the thumb and the first interosseous total nerve, medial dry second, third palm Lateral nerve; type Ⅱ: 6 cases), the lateral dry hair to the lateral branch of the thumb, medial dry palm of the third metacarpophalangeal nerve; Ⅲ