The YINWEI and YANGWEI channels are responsible for maintaining the balance between yin and yang, establishing accurate proportions which create a harmonious whole. They keep the body „bound” and coherent. A famous phrase says: that which moves between all yin meridians yin is called yinwei and what which moves between all yang meridians is called yangwei .
For these channels a separate description of their route is not given, like the rest, since their only function is to compress and maintain energy in the body.