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猫皮层体感Ⅱ区内脏伤害感受神经元的电生理特性及形态特征

陈京红, 刘素珍, 滕国玺

军事医学科学院药物毒物研究所.北京 100850；中国医科大学脑研究所神经生理研究室.辽宁,沈阳 110001

摘要

应用胞内记录和标记技术,观察了猫皮质第Ⅱ感觉区(the second somatosensory cortex,SⅡ)内脏大神经代表区的神经元对电刺激内脏大神经的诱发反应及形态特征。结果表明,体感SⅡ区存在内脏伤害性感受神经元。

关键词： 皮层体感Ⅱ区; 伤害性感受神经元; 细胞内记录; 细胞内标记; 内脏痛

Electrophysiological and morphological characteristics of the visceral nociceptive neurons in cortex SII area of cats

Chen Jinghong, Liu Suzhen, Teng Guoxi

Institute of Pharmacology and Toxinology,Academy of Military Medical Sciences.Beijing 100850；China

Abstract

Electrophysiological and morphological properties of the visceral nociceptive neurons (VNNs) in the secondary somatosensory cortex (SII) area of 16 cats were investigated with intracellular recording and labeling method. It was found that excitatory VNNs were pyramidal neurons predominantly, whereas more inhibitory VNNs were stellate neurons.

Key words: Second somatosensory cortex;Visceral nociceptive neuron;Intracellular recording;Intracellular labeling;Visceral pain

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引用本文：

陈京红, 刘素珍, 滕国玺. 猫皮层体感Ⅱ区内脏伤害感受神经元的电生理特性及形态特征[J]. 生理学报 1999; 51 (4): .

Chen Jinghong, Liu Suzhen, Teng Guoxi. Electrophysiological and morphological characteristics of the visceral nociceptive neurons in cortex SII area of cats. Acta Physiol Sin 1999; 51 (4): (in Chinese with English abstract).