目的 :观察头面部循经感传由督脉向任脉或由任脉向督脉的交会过程

其重点是观察感传绕过还是直接越过口裂。方法 :1 2名循经感传显著者

其中观察感传由督脉向任脉的交会过程 9例 :7例针刺位于督脉线上的奇穴印堂

2例针刺督脉经线印堂穴上 1寸 (经上非穴点 )。观察感传由任脉向督脉的交会过程 3例

其中 2例分别针刺光明穴和侠溪穴

另 1例先针刺印堂穴

随后针刺膻中穴

同时观察督脉与任脉的感传交接情况。结果 :所有受试者均出现循经感传由督脉绕口唇到达任脉或由任脉绕口唇到达督脉的交会过程。结论 :任督脉在头面部的交会过程是以绕过口唇的方式实现的

这与“环唇”、“别而络唇口”的历代文献记载相吻合。上述结果支持循经感传形成机理的外周观点Objective: To observe the convergence course of the propagated sensation along the Du Meridian and Ren Meridian. Methods: Twelve volunteer subjects with marked propagated sensation along the meridian (PSM) were observed. Among them

PSM traveling from Du Meridian to Ren Meridian was observed in nine cases by acupuncture stimulation of Yintang (EX HN 3) for 15 min in seven cases

and one non acupoint on Du Meridian course in 2 cases. The travelling process of PSM from Ren Meridian to Du Meridian was observed following acupuncture stimulation of Guangming (GB 37) and Jiaxi (GB 43) in 2 cases or Yintang (EX HN 3) and Danzhong (Ren 17) in one case. Results: In all the cases

after acupuncture stimulation

the evoked travelling course of PSM from Ren Meridian to Du meridian or from Du Meridian to Ren meridian passed around the lips in all the subjects

no PSM passed through the medial side of the mouth or the tongue body. Conclusion: The travelling process of PSM from Ren Meridian to Du Meridian or from Du Meridian to Ren Meridian on the face passes around the lips

that is consistent with the descriptions of the classical literature.