Aydinlioğlu A, Tosun N, Keles P, Akpinar F, Diyarbakirli S
Department of Anatomy, Medical Faculty, Atatürk University, Erzurum, Turkey.
Kaibogaku Zasshi. 1998 Feb;73(1):19-23.
To investigate variations of the abductor pollicis longus and the extensor pollicis brevis muscles, an anatomic study was performed on 15 cadaver forearms. Some variations were observed as reported in previous studies. An unusual insertion of the abductor pollicis longus muscle and the extensor pollicis brevis muscle also was encountered during the dissection. Both tendons of these muscles were found to have inserted into the inferior side of the base of the first metcarpal bone together, instead of dorsal side. Our study suggested that the extensor pollicis brevis muscle and the abductor pollicis longus muscle differentiate from a common muscle.
为了研究拇长展肌和拇短伸肌的变异情况，对15具尸体的前臂进行了解剖学研究。观察到一些如先前研究所报道的变异情况。在解剖过程中还遇到了拇长展肌和拇短伸肌的一种不寻常的附着情况。发现这两块肌肉的肌腱共同附着于第一掌骨基部的下侧，而非背侧。我们的研究表明，拇短伸肌和拇长展肌起源于同一块肌肉。
