摘要
为了解蝶腭神经节在鼻粘膜血流调节中的作用，应用激光多普勒血流仪观察刺激蝶腭神经节对猫鼻粘膜血流变化的调控作用。结果表明，电刺激一侧蝶腭神经节可以引起双侧鼻粘膜血管扩张，血流增加，并产生喷嚏反射，这种反应依电刺激的强度、频率而异，且与刺激时间有关。电刺激一侧副交感神经（切除颈上交感神经节的翼管神经）远侧游离端，只引起同侧血管反应。提示刺激蝶腭神经节引起的血管反应可能是通过中枢反射机制起作用。实验还显示刺激蝶腭神经节具有“反向血流调节作用”，这种调节作用的机制有待于进一步研究。
The effects of control of blood flow on cat nasal mucosa by stimulating sphenopalatine ganglion (SPG) were studied using laser Doppler flowmetry in order to investigate the role of SPG. The study showed that the stimulation on one side of SPG could induce vasodilation, with increased blood flow, as well as protective reflexes on both sides. The reactivity depended on the stimulation intensity, frequency and duration. The stimulation on one side of postganglionic parasympathetic nerves, in which the stellate ganglion was resected, caused vasodilation only ipsilaterally. The results indicated that the vasodilation induced by stimulating SPG might be mediated via central reflex arc. The “reverse blood regulation” phenomenon was observed during stimulation of SPG as well. The mechanisms of “reverse blood regulation” induced by stimulating SPG need further investigation.
出处
《中华耳鼻咽喉科杂志》
CSCD
1997年第3期163-166,共4页
Chinese Journal of Otorhinolaryngology
基金
国家教委留学回国人员启动基金
