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作者观测了45具(男29,女16)年成尸体90侧上肢的拇长屈肌,见65.56±5.01%有尺侧头。尺侧头多双侧性地出现或否,无性差及侧差。尺侧头上端附于指浅屈肌腱或肱骨内上髁者居多,肌腹斜向外下方,汇入拇长屈肌腱的上端。支配尺侧头的神经均发自骨间前神经,起始平面大多较支配拇长屈肌挠侧头的肌支稍高,行程短。供应动脉可以是尺侧下付动脉或骨间返动脉的细小分支。尺侧头与正中神经和尺动脉关系密切。本文就,拇长屈肌尺侧头的来源、功能以及命名等作了初步讨论。
The authors observed the flexor hallucis longus of the upper 90 limbs of 45 (29, 16) adult cadavers, with a 65.56 ± 5.01% ulnar head. Ulnar head and more bilateral or no sex, asexual and lateral difference. Ulnar head attached to the distal tendon tendon or the humerus medial epicondylist majority, muscle belly diagonally below, into the thumb flexor tendon upper end. The ulnar nerve dominates the anterior interosseous nerve. The initial plane is slightly taller than the dorsal flexion of the thumb flexor and the shortest stroke. Artery supply can be the ulnar artery or interosseous artery to return a small branch. The ulnar head is closely related to the median nerve and ulnar artery. This article, thumb longus flexor ulnar head of the source, function and naming made a preliminary discussion.