Abstract: As a result of the 4-skin-electrode measurement of the electrical resistance at different points, it disclosed that there were many meridians with lower electrical resistance in the sub-skin regions of human body. A comparison of the skin locations of the lower resistance meridians with those of the corresponding (classical acupuncture) meridians resulted in such high an agreement that could not be accidental, and thus established the objective physiological reality of the meridians. In the present paper, on the basis of meridian's lower electrical resistance and according to the well-known facts in physiology, the author argued that the essence of the meridians were only zones in the loose connective tissue but containing relatively richer interstitial fluid (tissue fluid) and thus exhibiting lower electrical resistance.

Key words: essence of acupuncture meridian, low-resistance meridian, loose connective tissue, interstitial fluid (tissue fluid)

摘要： 《低阻经络研究Ⅰ》通过用4个皮肤电极的方法测量人体阻抗，发现在健康人体体表浅层存在着低电阻带：低阻经络。《低阻经络研究Ⅱ》发现在低阻经络与体表传统经络（简称经络）的位置间有着绝非偶然的一致性，从而揭示经络具有电阻率较低的客观物性。作者进一步从低阻经络的实验数据出发，依据已被普遍接受的有关生理学结论和理论，分析了导致低阻的各种可能原因，最后推断：间液（组织液）的相对含量较高是经络低阻特性的根源，而经络的组织学本质则是疏松结缔组织里的，间液的相对含量较高的带区。

关键词: 经络实质, 低阻经络, 疏松结缔组织, 间液（组织液）