脊神经节神经元对躯体及(或)内脏神经电刺激的反应

首都医科大学学报 ›› 1996, Vol. 17 ›› Issue (1): 1-4.

脊神经节神经元对躯体及(或)内脏神经电刺激的反应

吕国蔚, 刘晓红

首都医科大学神经生物学研究室

收稿日期:1995-01-25 修回日期:1900-01-01 出版日期:1996-01-15 发布日期:1996-01-15

Responses of Spinal Ganglion Neurons to Electrical Stimulation of Somatic and/or Visceral Nerve

Lu Guowei, Liu Xiaohong

Department of Neurobiology, Capital University of Medical Sciences

Received:1995-01-25 Revised:1900-01-01 Online:1996-01-15 Published:1996-01-15

摘要/Abstract

摘要： 在30只大鼠骶₁(S₁)脊神经节上共记录到182个对躯体及(或)内脏神经电刺激发生反应的神经元。其中74个神经元既对阴部神经(Pu)刺激反应,也对盆内脏神经(Pe)刺激反应。Pu刺激引起的动作电位的传导速度(38.1m/s)显着快于Pe刺激引起的动作电位的传导速度(21.9m/s).Pu和Pe刺激引起的动作电位可互相碰掉。结果提示,躯体与内脏输入可通过分叉初级传入,在同一个A型脊神经节神经元上会聚。

关键词: 脊神经节, 盆神经, 阴部神经, 细胞内记录, 传入会聚

Abstract: One hundred and eighty two neurons were recorded from S₁ spinal ganglion in 30 rats.Of them, 74 neurons responded to stimulation of both pudendal(Pu)and pelvic(Pe)nerve.Conduction velocity of action potentials induced by Pu stimulation (38.07 m/s) was significantly faster than that of Pe stimulation induced ones (21.84 m/s).The action potentials evoked by Pu and Pe stimulation could be collided each another.These results indicate that somatic and visceral input may converge on single type A spinal ganglion neurons via dichotomizing primary afferents.

Key words: spinal ganglion, pelvic nerve, pudendal nerve, intracellular recording, afferent converge, rat

中图分类号:

Q426

吕国蔚;刘晓红. 脊神经节神经元对躯体及(或)内脏神经电刺激的反应[J]. 首都医科大学学报, 1996, 17(1): 1-4.

Lu Guowei;Liu Xiaohong. Responses of Spinal Ganglion Neurons to Electrical Stimulation of Somatic and/or Visceral Nerve[J]. Journal of Capital Medical University, 1996, 17(1): 1-4.

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