Course of the Channels and Point Qualifications
### Governor Vessel (Du Mai)
Course: The Governor Vessel starts in the lower abdomen or pelvic cavity. The surface pathway emerges from the perineum at GV 01, between the anus and the tip of the coccyx. From there it ascends along the spinal column and reaches GV 16 at the nape of the neck. An internal branch enters the brain and re-emerges at the vertex GV 20. From GV 16 the channel continues to ascend over the top of the head, and descends over the forehead to the tip of the nose and terminates at the junction of the gum and the frenulum on the upper lip.
##### Point Qualifications:

CV 04 | Mingmen |
CV 14 | Dazhui | Crossing Point with all Yang Channels
CV 20 | Bahui |
SI 03 | Houxi | Confluent Point of the Du Mai
BL 62 | Shenmai | Coupling Point of the Du Mai