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Influence of peripheral process branching in nerve of spinal ganglion on the primary afferent impulse

Wang Guodu, Wang Xiyu, Li Zhiwang

Department of Physiology, Yichang Medical College. Yichang 443003, Hubei； China

Abstract

In order to observe the electrical and morphological characteristics of neurons in toad spinal ganglion (SG)preparation, microelectrode filled with 0.75% horseradish peroxidase (HRP) was used both for intracellular recording and for intracellular labeling. Histological result showed that there were apparent branchings in peripheral process of A type cells. Intra-axonal recording of the discharges of dorsal root fiber could be evoked by simultaneous stimulation of two separate fine bundles in spinal nerve. The discharging event exhibited the patterns of interruption, default and addition.

Key words: Spinal ganglion;Peripheral process branching;;;

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Citing This Article：

Wang Guodu, Wang Xiyu, Li Zhiwang. Influence of peripheral process branching in nerve of spinal ganglion on the primary afferent impulse. Acta Physiol Sin 1996; 48 (1): (in Chinese with English abstract).