阳跷者，足太阳之别脉，其脉起于跟中，出于外踝下足太阳申脉穴。（在外踝下五分陷中，容爪甲白肉际）
当踝后绕跟，以仆参为本。（在跟骨下陷中，拱足得之）上外踝上三寸，以附阳为 。（在外踝上三寸，足太
阳之穴也）直上循股外廉，循胁后髀。上会手太阳、阳维于 。（在肩后大骨下胛上廉陷中）上行肩 外廉，
会手阳明于巨骨，（在肩尖端上行两叉骨罅间陷中）会手阳明少阳于肩 。（在 骨头，肩端上，两骨罅陷宛宛
中。举臂取之有空）上人迎夹口吻，会手足阳明、任脉于地仓。（夹口吻旁四分，外如近下有微脉动处）同足阳
明上而行巨 ，（夹鼻孔旁八分，直瞳子，平水沟）复会任脉于承泣。（在目下七分，直瞳子陷中）至目内 ，
与手足太阳、足阳明、阴跷，五脉会于睛明穴。（见阴跷下）从睛明上行入发际，下耳后，入风池而终。（风
池在耳后，夹玉枕骨下发际陷中）凡二十二穴。难经曰∶跷脉从足至目，长七尺五寸，合一丈五尺。
甲乙经曰∶跷脉有阴阳，何者当其数？曰∶男子数其阳，女子数其阴，当数者为经，不当数者为络。
气之在身也，如水之流，如日月之行不休。故阴脉营其脏，而阳脉营其腑。如环之无端，莫知其纪，终而
复始。其流溢之气，内溉脏腑，外濡腠理。
The Yang Qiao Mai (Yang Heel Vessel) is a divergent branch of the Foot-Taiyang Bladder Channel. Its pulse originates from the middle of the heel and emerges from below the lateral malleolus at the Shenmai (BL62) acupoint of the Foot-Taiyang channel. (Located 0.5 cun below the lateral malleolus in the depression, at the junction of the nail bed and white flesh.)
It passes behind the ankle, circles the heel, and takes Pucan (BL63) as its root. (Located in the depression under the calcaneus, accessible by arching the foot.) It ascends to three cun above the lateral malleolus, taking Fuyang (BL59) as [a key point]. (Located three cun above the lateral malleolus; it is an acupoint of the Foot-Taiyang channel.) It then goes straight up along the lateral aspect of the thigh, following the posterior hypochondrium to the hip. Ascending, it meets the Hand-Taiyang Small Intestine Channel and the Yang Wei Mai (Yang Linking Vessel) at [Jianjing area]. (Located in the depression below the large bone of the shoulder and the upper edge of the scapula.) It continues upward along the lateral edge of the shoulder, meeting the Hand-Yangming Large Intestine Channel at Jugu (SI14). (Located in the depression between the two forked bones, ascending from the tip of the shoulder.) It meets the Hand-Yangming Large Intestine Channel and the Hand-Shaoyang Sanjiao Channel at Jianyu (LI15). (Located at the Jianyu bone, above the shoulder end, in the deep depression between the two bones. The point can be located with a sense of emptiness when the arm is raised.) It ascends to the vicinity of Renying (ST9), flanking the corners of the mouth, and meets the Hand-Yangming, Foot-Yangming Stomach Channel, and Ren Mai (Conception Vessel) at Dicang (ST4). (Located 0.4 cun lateral to the corner of the mouth, where a slight pulsation can be felt slightly lower and outward.) Together with the Foot-Yangming Stomach Channel, it ascends to Juliao (ST3). (Located 0.8 cun lateral to the nostril, directly opposite the pupil, level with Shuigou.) It again meets the Ren Mai at Chengqi (ST1). (Located 0.7 cun below the eye, in the depression directly opposite the pupil.) Arriving at the medial canthus of the eye, it meets five channels—the Hand-Taiyang, Foot-Taiyang, Foot-Yangming, Yin Qiao Mai (Yin Heel Vessel)—at Jingming (BL1). (See Yin Qiao Mai for details.) From Jingming, it ascends into the hairline, descends behind the ear, enters Fengchi (GB20), and terminates. (Fengchi is located in the depression below the hairline, flanking the Yuzhen bone behind the ear.) There are twenty-two acupoints in total. The Nan Jing states: "The Qiao vessels run from the foot to the eye, measuring seven chi and five cun, totaling one zhang and five chi."
The Jia Yi Jing states: "Qiao vessels have Yin and Yang aspects. Which one counts as the principal vessel? The answer is: For men, count the Yang; for women, count the Yin. The one counted is the Jing (Principal Vessel); the one not counted is the Luo (Connecting Vessel)."
Qi in the body flows like water and moves ceaselessly like the sun and moon. Thus, Yin vessels nourish the Zang organs, while Yang vessels nourish the Fu organs. Like a circle without beginning or end, its order is hard to discern, yet it ends and begins anew. The overflowing Qi irrigates the internal Zang and Fu organs and moistens the external Couli (skin texture and pores).