Cavdar S, Dogan T, Bayramiçli M, Sehirli U, Yüksel M
Department of Anatomy, Marmara University School of Medicine, Istanbul, Turkey.
J Hand Surg Am. 1998 Jan;23(1):173-7. doi: 10.1016/S0363-5023(98)80108-1.
An unusual variation of the extensor digitorum brevis manus in a male cadaver is presented. The band-shaped muscle was located at the ulnar side of the hand between the fourth and fifth extensors. It originated from the deep carpal fascia and inserted to the extensor tendons of the fourth and fifth fingers with a tendon and a slip, respectively. The origin, insertion, and location of the muscle differ from those previously reported; with these anatomic features, the muscle variation cannot be placed into the current classifications. The phylogenetic and ontogenetic implications of the muscle are reviewed.
本文报道了一例男性尸体中示指伸肌的罕见变异。带状肌位于手部尺侧，在第四和第五伸肌之间。它起自腕掌侧深筋膜，分别以一条肌腱和一个腱束止于第四和第五指的伸肌腱。该肌肉的起点、止点和位置与先前报道的不同；基于这些解剖学特征，这种肌肉变异无法归入目前的分类。本文还对该肌肉的系统发育和个体发育意义进行了综述。
