头面部植物神经系统,对面、眶、腭的营养和血循环的调节起重大作用,所以和三叉神经痛与蝶腭节神经痛的发病机制有密切的关系.蝶腭神经节位于翼腭窝内,直径3～5mm.含有副交感纤维(岩浅大神经)、交感纤维(岩深神经)和感觉纤维(三叉神经第Ⅱ支的分支).岩浅大神经和岩深神经合并形成翼管神经,穿翼管进入蝶腭神经节;节后纤维分布到眼、咽、鼻和腭.蝶腭神经节从面部定位较 Head and facial nerve system, the opposite, orbital palate nutrition and blood circulation regulation plays a major role, so with the trigeminal neuralgia and the pathogenesis of sphenopia and palate neuralgia is closely related to the sphenopalatine ganglion in the pterygopalatine fossa, Diameter of 3 ~ 5mm, including parasympathetic fibers (petrous nerve), sympathetic fibers (deep petrosal nerve) and sensory fibers (branch of the trigeminal nerve branch II) .The superficial petrosal nerve and deep petrosal nerve form the pterygoid nerve, Into the sphenopalatine ganglion; postganglionic fibers are distributed to the eyes, pharynx, nose and palate.