Course
The Kidney Channel of Foot-Shaoyin starts from the plantar surface of the little toe, and runs obliquely towards the center of he sole of the foot (Point Yongquan,KI1 ). Emerging from Point Rangu (KI2),the interior aspect of the
tuberosity of the navicular bone. it runs behind the medial malleolus, and reaches the heel. Then it ascends along the medial side of the popliteal fossa. Ascending continuously along the medio-posterior aspect of the thigh, it runs
through the vertebra] column. From there it enters its pertaining organ, the kidney, and communicates with the urinary bladder.
Its direct branch re-emerges from the kidney, runs straight up through the kidney, runs straight up through the liver and diaphragm, taro the lung, from which it travels along the throat and terminates at the root of the tongue.
Another branch of its exits from the lung. connects with the heart, and is distributed over the thoracic cavity to meet with the Pericardium Channel of Hand-Jueyin.

Jiaoxin(KI8)
Location: On the medial side of the leg, 2 cun above Taixi(KI3) and 0. 5 cun anterior to Fuliu(Kl7). Posterior to the medial border of the tibia.
Indications:Irregular menstruation, dysmenorrhea, metrorrhagia and metrostaxis, prolapse of uterus, diarrhea.constipation, swelling pain in the testes.
Method:Puncture perpendicularly 0.5-0.7inch.Moxibustion is applicable.
Regional anatomy
Vasculature:Deeper,the posterior tibial artery and vein.
Innervation:The medial crural cutaneous nerve;deeper,the tibial nerve.

The lung Meridian picture of Jiaoxin(KI8) Acupoint	Body surface picture of Jiaoxin(KI8) Acupoint
Anatomy picture of Jiaoxin(KI8) Acupoint	Section picture of Jiaoxin(KI8) Acupoint