Objective:To observe the effect of acupuncturing Hegu(LI 4)and Taichong(LR 3)to the level of nitric oxide(NO)in treatment of hemicrania.
目的观察针刺四关穴治疗偏头痛的疗效及其对血浆一氧化氮（NO）水平的影响。
2
From animal experiment, we discovered that the sensory afferent from Hegu and mouth-face converged at the same neuron of the cerebral ganglion.
结果动物实验发现，来自合谷穴区的传入和来自口面部的传入可以会聚在同一个丘脑神经元上。
3
And we acquired from clinical trial that when irritate Hegu acupoint, it stimulated not only the hand-region of archi-somatosensory cortex, but also the face-region.