2.2.5.1 Cyclical flowing and distribution 2.2.5.1.1 Yin heel vessel Yin heel vessel starts from below the medial malleo-lus and ascends to the upper portion of the medial malleo-lus. Then it runs straight upward along the posterior bor-der of the medial aspect of the thigh to the external geni-talia. From there it goes upward along the chest to the su-praclavicular fossa and runs further upward lateral to throat. There it converges with the thoroughfare vessel, passes by the nose and combines with yang heel vessel at the inner canthus. Then it runs upward with yang heel vessel and enters the brain between the two tendons in the nape (see Fig. 93). Associated viscus: Brain. Associated organs: Genitalia, throat and eyes. 2.2.5.1.2 Yang heel vessel Yang heel vessel starts from the lateral and inferior side of the heel. It runs upward from behind the external malleolus, passes the lateral side of the shank and the thigh, moves upward along the posterior side of the hypo-chondria and reaches the shoulder from the posterior re-gion of the axillary fold. From there, it ascends along the neck to the corner of the mouth. Then it enters the inner canthus along the lateral side of the nose to combine with the yin heel vessel. Running further upward along the bladder meridian to Fengchi (GB 20), it enters the brain between the two tendons in the nape (see Fig. 94). Associated viscus: Brain. Associated organs: Mouth and eyes. 2.2.5.2 Indications Somnolence, insomnia, epilepsy and other disorders related to the movement of the lower limbs. 2.2.5.3 Crossing acupoints 2.2, 5,3,1 Yin heel vessel Kidney meridian: Zhaohai ( KI 6 ) and Jiaoxin (KI 8). Bladder meridian: Jingming (BL 1). Besides, Zhaohai (KI 6) of the kidney meridian is connected with the yin heel vessel. 2.2.5.3.2 Yang heel vessel Bladder meridian: Pucan (BL 61), Shenmai (BL 62), Fuyang (BL 59) and Jingming (BL 1). Gallbladder meridian: Juliao (GB 29) and Fengchi (GB 20) Eaccording to Nanjing (Canon of Difficulties )]. Stomach meridian: Dicang (ST 4), Juliao (ST 3) and Chengqi (ST 1). Large intestine meridian. Jianyu (LI 15) and Jugu (LI 16). Small intestine meridian. Naoshu (SI 10). Governor vessel. Fengfu (GV 16 ) [-according to Lingshu ( Spiritual Pivot) ]. Besides, Shenmai (BL 62) of the bladder meridian is connected with the yang heel vessel.
