Akita K, Niiro N, Murakami G, Sato T
Department of Anatomy, School of Medicine, Tokyo Medical and Dental University, Japan.
Clin Anat. 1999;12(1):12-5. doi: 10.1002/(SICI)1098-2353(1999)12:1<12::AID-CA2>3.0.CO;2-K.
During dissection of the foot region, it is frequently found that some nerve branches run close to the tibial surface of the second metatarsal bone. To investigate the nerve branches, detailed dissection of the first dorsal interosseous muscle was performed in 10 Japanese adult feet with special reference to its innervation. In all specimens the muscle was clearly separated into lateral and medial parts. The branches ran between these parts and innervated the parts. The small dorsal region of the medial part of the muscle was also innervated by a branch of the deep peroneal nerve. Based on its innervation, the muscle appears to be composed of two elements from the flexores breves profundi and an element from the dorsal primordium. A possible schematic model of the origins of this muscle is proposed.
在足部区域的解剖过程中，经常发现一些神经分支靠近第二跖骨的胫骨面走行。为了研究这些神经分支，对10例日本成人足部的第一背侧骨间肌进行了详细解剖，特别关注其神经支配情况。在所有标本中，该肌肉明显分为外侧和内侧两部分。神经分支走行于这两部分之间并支配它们。肌肉内侧部分的小背侧区域也由腓深神经的一个分支支配。基于其神经支配情况，该肌肉似乎由来自拇收肌和背侧原基的两个成分组成。本文提出了该肌肉起源的一个可能的示意图模型。
