颈交感神经对大鼠颈胸脊神经背根自发放电的影响  

Modulation of Neck Sympathetic Nervous Trunk on Spontaneous Discharge of Rat Dorsal Root

作　　者：司军强[1] 赵义梅[1] 王英姿[1] 付建华[2] 张志琴[2] 刘政江[2] 

机构地区：[1]石河子大学医学院机能教研室 [2]石河子大学医学院生理教研室

出　　处：《农垦医学》1998年第2期63-65,共3页Journal of Nongken Medicine

基　　金：石河子大学医学院资助

摘　　要：本文应用电生理方法，观察了预交感神经对其相应节段脊神经背根自发放电的影响。当给颈交感神经干15～20Hz的电刺激后，颈胸段的脊神经背根平均自发放电明显增加，此种作用可持续5～6分钟。经颈静脉直接注射去甲肾上腺素（NE）则未观察到背根自发放电的改变。本实验进一步证实颈交感神经干对初级感觉信息的传递有调制作用。The effects of electrical stimulating neck sympathetic nervous trunk on Spontaneous discharge of rat dorsal root were investigated with eIectrophysiologcal technique. The mean spontaneous discharging rate of dorsal root increased with 15- 20Hz electrical stimulation, this action could last 5~6min.We tested the effect of neck vein injection of noradrenaline and no change was observed- The results suggest that neck sympathetic nervous trunk has a functional role in primary sensory afferent trans mission.

关 键 词：背根神经节 交感神经 放电 调制 电生理 

分 类 号：R338.8[医药卫生—人体生理学]