Wang S, Robertson R M
Department of Biology, McGill University, Montreal, Quebec, Canada.
J Comp Neurol. 1989 Jan 8;279(2):272-80. doi: 10.1002/cne.902790209.
The motor innervation of the major flight muscles powering the fore- and hindwings of the cricket Teleogryllus oceanicus was investigated. The morphology of the motor neurons was determined by filling them via their axons in the periphery with either Lucifer Yellow or cobalt chloride followed by silver intensification. Details of the location of branches of motor neurons within the ganglion were obtained by serially sectioning ganglia containing filled neurons. For each flight muscle at least two motor neurons were found. The somata of motor neurons were located in two clusters in the ganglion, the anterior lateral cluster and the posterior lateral cluster. Motor neurons in the same cluster had similar morphologies. Most of the arborizations of these motor neurons were in the dorsal neuropil with a few branches in the lateral intermediate neuropil. The morphology of flight motor neurons was compared with the morphology of leg motor neurons in consideration of the possible functional organization of the ganglion. A comparison was made between motor neurons innervating homologous muscles of the cricket and the locust to determine the extent of the difference between the flight systems of these two groups.
对为大洋洲黑蟋蟀前翅和后翅提供动力的主要飞行肌肉的运动神经支配进行了研究。运动神经元的形态是通过用荧光黄或氯化钴经其外周轴突填充它们，然后进行银增强来确定的。通过对含有填充神经元的神经节进行连续切片，获得了运动神经元在神经节内分支位置的详细信息。对于每块飞行肌肉，至少发现了两个运动神经元。运动神经元的胞体位于神经节的两个簇中，即前外侧簇和后外侧簇。同一簇中的运动神经元具有相似的形态。这些运动神经元的大多数分支在背侧神经纤维网，少数分支在外侧中间神经纤维网。考虑到神经节可能的功能组织，将飞行运动神经元的形态与腿部运动神经元的形态进行了比较。对支配蟋蟀和蝗虫同源肌肉的运动神经元进行了比较，以确定这两组飞行系统之间的差异程度。
