Methods:The fibrous arch structure of the origin of adductor muscle of thumb was observed and measured on 20 (40 sides) adult cadaveric hand specimens.

• 方法：解剖20个(40侧)成人尸体标本手的拇收肌腱弓，对拇收肌起始部的纤维弓状结构进行观察、测量，对观测结果进行统计学处理。