Fahrer M
Aust N Z J Surg. 1977 Apr;47(2):243-7. doi: 10.1111/j.1445-2197.1977.tb04279.x.
The abductor pollicis brevis muscle acts in conjunction with the palmaris longus and the abductor pollicis longus to abduct the first metacarpal in the sagittal plane. Segments of the abductor pollicis brevis which arise from the tendons of the palmaris longus and/or the abductor pollicis longus and are inserted into the extensor expansion are the lumbricals of the thumb. The lateral border of the abductor pollicis brevis presents an important muscular (in four cases out of ten neurovascular) hilum. The tendinous slip to the abductor pollicis brevis from the palmaris longus presents near its origin an orifice which the palmar branch of the median nerve traverses to become superficial.
拇短展肌与掌长肌和拇长展肌协同作用，在矢状面内使第一掌骨外展。拇短展肌起自掌长肌和/或拇长展肌腱且止于指背腱膜的部分为拇指蚓状肌。拇短展肌的外侧缘有一个重要的肌门（在十分之四的情况下为神经血管门）。掌长肌至拇短展肌的腱性束在其起点附近有一孔，正中神经掌支由此穿过并浅出。
