关键词: 足底中间群肌,  ,  , 足背肌,  ,  , 肌内神经,  ,  , Sihler’s染色,  ,  , 分布模式

Abstract: Objective  To reveal the whole-mount intramuscular never distribution pattern of intermediate plantar group and dorsails pedis muscles and to explore its significance.  Methods  The intermediate plantar group and dorsails pedis muscles from twelve adult cadavers fixed by formalin were removed. Modified Sihler's staining was used to display the whole-mount intramuscular nerve distribution pattern.   Results   The nerve branches of the flexor brevis digitorum, the first and second lunbrical muscles innervated by medial plantar nerve entered from deep and superficial surface respectively. The nerve branches of the quadrates, the third and fourth plantar lunbrical muscles innervated by lateral plantar never coursed from the insertion to the origin of the muscle. While the nerve branches of the interossei plantar muscles and the interossei dorsal muscles coursed from the origin to the insertion of the muscle. The nerve branches of the extensor hallucis brevis and the extensor brevis digitorum muscle shared one nerve trunk. The lumbrical muscles, the first and second interossei plantar muscles, the first interossei dorsal muscle, the extensor hallucis brevis and the extensor brevis digitorum muscle formed only one intramuscular nerve dense region in the middle of the muscle belly. The flexor brevis digitorum, the quadrates plantae, the third interossei plantar muscle and the second to fourth interossei dorsal muscles had two intramuscular nerve dense regions on both sides of the muscle, these muscles can be divided into two neuromuscular subdivisions.   Conclusions   These results may provide morphological guidance for surgical operation to avoid nerve injury and the selection and matching of muscle transplantation and the injection of botulinum toxin A to block the spasticity of these muscles. 

Key words: Intermediate plantar group,  ,  , Dorsails pedis muscles,  ,  , Intramuscular nerves,  ,  , Sihler’s staining,  ,  , Distribution pattern