An acupoint-originated human interstitial fluid circulatory network

To the Editor:Since 1027,when the Tian Sheng Bronze Statue showing acupoints and meridians was first introduced for medical practitioners,it has evolved to the currently used acupoints and meridians atlas in traditional Chinese medicine(TCM).[1]To date,the acupoints represent defined areas on the body surface relative to certain landmarks.The acupoints in the extremity endings would connect anatomically with diverse associated visceral organs or tissues,forming a Meridian and Collateral network.Illustrated on the atlas,each main meridian is usually a virtual line connecting a group of adjacent acupoints that correlate with certain visceral organ.In modern medical science,the anatomical structures of main meridians remain largely unclarified.