手之六阳，从手至头，长五尺，五六三丈。手之六阴，从手至胸中，三尺五寸，三六一
丈八
尺，五六三尺，合二丈一尺。足之六阳，从足上至头八尺，六八四丈八尺。足之六阴，从
足
至胸中六尺五寸，六六三丈六尺，五六三尺，合三丈九尺。跷脉从足至目七尺五寸，二七一
丈四尺，二五一尺，合一丈五尺。督脉任脉四尺五寸，二四八尺，二五一尺，合九尺，凡都
合十六丈二尺，此气之大经隧也。
手部的六条阳经，从手部走向头部，每条长五尺，六条合计三丈。手部的六条阴经，从手部走向胸中，每条长三尺五寸，六条合计一丈八尺，加上五六三尺（此处原文逻辑似有重叠或特定算法，依原文直译：六六一丈八尺，再加五六三尺），总共二丈一尺。足部的六条阳经，从足部向上走到头部，每条长八尺，六条合计四丈八尺。足部的六条阴经，从足部走向胸中，每条长六尺五寸，六六三丈六尺，再加五六三尺，总共三丈九尺。跷脉从足部走到眼部，每条长七尺五寸，两条合计一丈四尺，再加二五一尺，总共一丈五尺。督脉和任脉各长四尺五寸，二四八尺，再加二五一尺，总共九尺。以上所有经脉长度合计十六丈二尺，这就是气运行的大通道。
The six Yang meridians of the hand extend from the hand to the head, each measuring five chi; together they measure three zhang. The six Yin meridians of the hand extend from the hand to the chest center, each measuring three chi and five cun; six times one is one zhang and eight chi, plus five times six adds three chi, totaling two zhang and one chi. The six Yang meridians of the foot extend from the top of the foot to the head, each measuring eight chi; together they measure four zhang and eight chi. The six Yin meridians of the foot extend from the foot to the chest center, each measuring six chi and five cun; six times six is three zhang and six chi, plus five times six adds three chi, totaling three zhang and nine chi. The Qiao meridians (Shenmai and Yangqiao) extend from the foot to the eye, each measuring seven chi and five cun; two times seven is one zhang and four chi, plus two times five adds one chi, totaling one zhang and five chi. The Du Mai (Governing Vessel) and Ren Mai (Conception Vessel) are each four chi and five cun long; two times four is eight chi, plus two times five adds one chi, totaling nine chi. Altogether, these sum up to sixteen zhang and two chi, which constitutes the major pathways through which Qi circulates.