Penn Chiao, in the 27th difficulty, in the Nan Jing (Nan Ching) describes the primary channels (or meridians) in Chinese Acupuncture include the twelve (12) primary channels and fifteen (15) network (or collateral) vessels. These twenty seven (27) conduit channels and vessels enable and move Qi and Blood, and have uninterrupted flow between each other.
The Eight Extra Channels are said not to be influenced by the primary channels, thus they are not a part of the mutual sharing of contents with the other twenty seven (27) channels and collaterals. It is said that when the rain pours down from Heaven, the ditches (Network Vessels) and reservoirs (Channels) become full, and that when they become full, the surplus then flows in to the Extra Channels. This surplus then pours in to the deep lakes.
|Ren Mai Channel
|Yin Qiao Channel
|Du Mai Channel
|Yang Qiao Channel
|Dai Mai Channel
|Yang Wei Channel
|Chong Mai Channel
|Yin Wei Channel
- Some now include the Ren and Du Channels as a part of the Primary Channels.
This would make fourteen (14) primary channels and six (6) Extra Channels.
- There are also now fourteen (14) network vessels, making the total number of Channels and Vessels twenty four (24).
- The Du (Governing) and Ren (Conception) Channels have their own points while the other 6 channels only use points from the other Fourteen (14) Channels (the 12 primary channels, plus the Ren and Du channels).
Chong Mai (Penetrating Vessel)
Alternate Names: Sea of Arteries and Meridians, Sea of Blood
- KID-11 - KID-21
Ren Mai (Conception Vessel)
Alternate Names: Sea of Yin Meridians, Directing Vessel, Controller Vessel
- REN-01 - REN-24
Du Mai (Governing Vessel)
Alternate Names: Sea of Yang Meridians, Supervisor Channel
- DU-01 - DU-28
Dai Mai (Belt Vessel)
Alternate Names: Girdling Vessel, Belt Channel
- BL-23 ?
- DU-04 ?
Yang Qiao (Yang Heel Vessel)
Alternate Names: Yang Motility Vessel, Accelerator of Yang, Yang Walker Vessel
Yang Wei (Linking Vessel)
Alternate Names: Preserver of Yang, Yang Keeper Vessel
- GB-13 - GB-20
Yin Qiao (Heel Vessel)
Alternate Names: Yin Motility Vessel, Accelerator of Yin, Yin Walker
Yin Wei (Linking Vessel)
Alternate Names: Preserver of Yin