唇、鼻针的针感是通过三叉神经传入的。痛觉生理机能的变化必然是以物质变化为基础的。本实验试图通过电镜的观察得到组织学的证椐。方法选用健康小白鼠21只

体重在25克左右。随机分为对照组组实验组。对照组不进针

但同样固定在鼠台上

条件与实验组同;实验组根据针刺镇痛效果又分为痛阈提高组和无效组。进针部位相当于人中、承桨两穴

用DZ-62电针机通电15分钟

起伏波形。测痛系用幅射热照射小鼠尾巴

根椐It is demonstrated elinically and experimentally that pain threshold might be raised by lip or nasal acupuncture

Needling sensation of the acu-puncture is conducted to higher Centers by way of trigeminal nervous sys-tem. The physiological changes of Pain decidedly dependent upon the his-tological changes. This experiment was designed in an attempt to aquiresuch histological evidence.