翼腭神经节是位于头部的副交感神经节，其节前神经元位于脑干的上泌涎核，中枢的其它部位广泛投射至该核。节后神经元含乙酰胆碱，还含ＶＩＰ、ＮＰＹ、ＥＮＫ等多种神经肽及少量儿茶酚胺，乙胺胆碱与神经肽、不同的神经肽互相共存。节后纤维除分布到泪腺、鼻腔和腭部粘膜外，还可至脑血管、眼球和头面部皮肤等处。 Pterygopalatine ganglion is located in the head of the parasympathetic ganglion, preganglionic neurons located in the upper brain stem salivary nuclei, the other parts of the central projection to the core. Postganglionic neurons with acetylcholine, but also with VIP, NPY, ENK and other neuropeptides and a small amount of catecholamines, choline and neuropeptide, different neuropeptides coexist with each other. In addition to postganglionic fibers distributed to the lacrimal gland, nasal cavity and palate mucosa, but also to the cerebrovascular, eye and head and face skin and so on.