摘要
目的分析颈交感神经节和颈脊神经节之间的神经纤维联系,探讨颈性眩晕发病的神经反射基础。方法 48只新西兰兔随机分为颈上交感神经节组和颈下交感神经节组及相应对照组,于颈上或颈下交感神经节内分别注入荧光金溶液或生理盐水,分别于存活4、8d后取出双侧颈脊神经节C2～C8,制备冷冻切片并进行荧光显微镜观察分析。结果颈上交感神经节组在同侧C2～C5脊神经节中出现荧光金标记神经元,以C3和C4脊神经节中标记神经元为多;颈下交感神经节组在同侧C5～C8脊神经节中出现标记神经元,以C6和C7为多。结论颈交感神经节和颈脊神经节之间存在直接的神经纤维联系,且有一定的分布规律,这些联系可能是颈性眩晕的神经解剖学基础。
Objective To study the neural connections between cervical sympathetic ganglia and cervical spinal ganglia, and explore the neuroanatomical basis of the pathogenesis of cervical vertigo. Methods New Zealand rabbits were randomly divided into superior, inferior cervical sympathetic ganglia and control groups. Fluoro-gold （FG） or normal saline was injected into the superior or inferior cervical sympathetic ganglia. At 4 or 8 days after injection, the bilateral spinal ganglia were removed, cryo-sectioned and observed under a fluorescence microscope. Results FG labeled neurons were found in the ipsilateral C2-C5 spinal ganglia and more FG labeled neurons were observed in C3 and C4 spinal ganglia in the superior cervical sympathetic ganglia group. In the inferior cervical sympathetic ganglia group, there were FG labeled neurons in the C5-C8 spinal ganglia and more FG labeled neurons were found in C6 and C7 spinal ganglia. Conclusion Neural reflex arch between cervical spinal and cervical sympathetic ganglia was found, which may provide an important neuroanatomical basis for the cervical vertigo.
出处
《解剖学报》
CAS
CSCD
北大核心
2011年第5期614-617,共4页
Acta Anatomica Sinica
关键词
脊神经节
颈上交感神经节
颈下交感神经节
荧光金
颈性眩晕
神经反射弧
逆行追踪
新西兰兔
Spinal ganglion
Superior cervical ganglion
Inferior cervical ganglion
Fluoro-gold
Cervical vertigo
Reflex arc
Retrograde labeling
New Zealand rabbit
