Motorina M V
Laboratory of Neuronal Interaction Evolution, Institute of Evolutional Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg.
Morfologiia. 1998;113(1):7-22.
Original data on structural and functional organization of spinal motoneuron axon collaterals in fish, amphibians and reptiles are presented. It is stated for the first time that synapses formed by recurrent collaterals on motoneuron dendrites should be referred to as excitatory chemical ones according to their ultrastructure. Comparison of present findings and reports on motor axon collaterals and their synapses in mammals allows to demonstrate characteristic features of the structure of neuropil plexus interneurons and synaptic connections that determine the action of recurrent inhibition and facilitation mechanisms in spinal cord of the vertebrates.
本文展示了鱼类、两栖类和爬行类动物脊髓运动神经元轴突侧支的结构和功能组织的原始数据。首次指出，根据其超微结构，由回返侧支在运动神经元树突上形成的突触应被视为兴奋性化学突触。将目前的研究结果与关于哺乳动物运动轴突侧支及其突触的报告进行比较，可以揭示神经毡丛中间神经元的结构特征以及突触连接，这些特征决定了脊椎动物脊髓中回返抑制和易化机制的作用。
