Eldridge L
Exp Neurol. 1984 Jan;83(1):187-92. doi: 10.1016/0014-4886(84)90056-6.
The segmental levels of the innervation of the flexor hallucis longus (FHL) in the cat have been unclear. To clarify the location of the spinal innervation of the FHL, physiologic techniques were used both to identify the ventral roots supplying the FHL and to relate the distribution of its segmental innervation to that of another calf muscle, the soleus, in the same cat. The soleus was used as a reference because its innervation has been consistently located by several investigators using a variety of techniques. The contributions of the various lumbosacral ventral roots were assessed by measuring the muscle contractions produced by electrically stimulating individual roots. The FHL was found to be supplied only by roots L6 and L7 and the soleus, as reported by previous investigators, only by L7 and S1. In every cat, at least some part of the innervation to the FHL was rostral to that of the soleus. Comparison of these results with those of Sherrington, Romanes, and Jefferson strongly suggests that the FHL in the present study corresponds to the adjacent synergistic muscle labeled flexor digitorum longus by Sherrington and Romanes.
猫的拇长屈肌（FHL）神经支配的节段水平一直不明确。为了明确FHL脊髓神经支配的位置，采用生理学技术来识别支配FHL的腹根，并将其节段性神经支配的分布与同一只猫的另一条小腿肌肉比目鱼肌的节段性神经支配分布联系起来。比目鱼肌被用作参照，因为几位研究者运用多种技术一直确定其神经支配位置。通过测量电刺激单个神经根所产生的肌肉收缩来评估各个腰骶部腹根的作用。结果发现，FHL仅由L6和L7神经根支配，而比目鱼肌，如先前研究者所报道，仅由L7和S1神经根支配。在每只猫中，FHL神经支配的至少一部分位于比目鱼肌神经支配的头侧。将这些结果与谢灵顿、罗曼斯和杰斐逊的结果进行比较，强烈表明本研究中的FHL与谢灵顿和罗曼斯标记为趾长屈肌的相邻协同肌相对应。
