Ito J, Honjo I
Department of Otolaryngology, Faculty of Medicine, Kyoto University, Japan.
Acta Otolaryngol. 1988 Mar-Apr;105(3-4):292-6. doi: 10.3109/00016488809097010.
The direct fiber connections from the cochlear nuclei to the tensor tympani muscle (TTM) motoneurons were investigated by means of electrophysiological and horseradish peroxidase (HRP) methods, using cats. When HRP was injected into motoneuron region of the TTM, HRP-labelled cells were found bilaterally in the dorsal cochlear nucleus (DCN) and ventral cochlear nucleus (VCN). When the electrical stimulus was applied to the cochlear nucleus, the TTM motoneurons fired spikes monosynaptically with s short latency. These histological and electrophysiological results indicate the existence of direct fiber connections from the bilateral cochlear nuclei to the TTM motoneurons.
采用猫作为实验对象，运用电生理学和辣根过氧化物酶（HRP）方法，研究了从耳蜗核到鼓膜张肌（TTM）运动神经元的直接纤维连接。当将HRP注入TTM运动神经元区域时，在双侧背侧耳蜗核（DCN）和腹侧耳蜗核（VCN）中均发现了HRP标记的细胞。当对耳蜗核施加电刺激时，TTM运动神经元以较短的潜伏期单突触发放动作电位。这些组织学和电生理学结果表明，从双侧耳蜗核到TTM运动神经元存在直接纤维连接。
