1.7 The Eight Extraordinary Vessels (qi jing ba mai)Pairing according to Yin/Yang polarity
Pairing of the extraordinary vessels according to Yin/Yang polarity
Yin vessels Yang vessels Functions of the Yin/Yang pair General functions – Centre/periphery
Central vessels (pathways on the head and torso)
ren mai du mai The du maican be considered to be the first Functions:Storage and distribution (of
manifestation of the Qi and Yang, the ren maithe first Yin and Yang). Foundation of the eight
manifestation of the Blood and Yin. This pair stores extraordinary vessels, stores Essence Qi, is
the Yin Qi and Yang Qi. responsible for the support of the
chong mai dai mai The chong maiis like a harmonious connection internal organs and extraordinary fu
between Yin and Yang, it expresses vitality and organs, as well as for the fundamental
sets impulses. body structures
The dai maiencircles; it is like a container and
prepares the circulation of Yin and Yang. The pair
circulates the Essence (jing) and Qi between the
Yin and Yang regions of the body.
Peripheral vessels (pathways from the lower extremities to the torso)
yin qiao mai yang qiao mai This pair creates balance between Yin and Functions:Balance, circulation and
Yang(for example balance between Essence connection (of the Yin and Yang
(jing) and Qi, Blood and Qi, left and right, aspects). Provides contact between the
Nutritive Qi and Defensive Qi, also on the outside – distal regions of the body and the torso
between day and night), controls and regulates and head.
the ascending (yin qiao mai) and descending
(yang qiao mai) movement in the body, is
responsible for balance and rhythm between
Yin and Yang.
yin wei mai yang wei mai The yin wei maigoverns the Interior (li), it
organises and creates connections within the
Yinaspects of the body. The yang wei mai
governs the Exterior (biao), it organises within
the Yang aspects of the body. This pair connects the
Yin and Yang respectively.‘That which moves and
circulates between the Yinchannels is called the
yin wei– that which moves between the Yang
channels is called the yang wei.’Central–peripheral pairing
Here, a central vessel is combined with a peripheral vessel. This
pairing probably refers to regions of the body which are traversed
and supplied by the pair.Central–peripheral pairing of the extraordinary vessels
Pair Vessel Relationship Opening point Coupling point Supported regions
Pair 1 chong mai father SP-4 P-6 Heart, thorax, Stomach
yin wei mai mother P-6 SP-4
Pair 2 du mai husband S.I.-3 BL-62 Inner canthus of the eye, occiput, shoulders
and back, S.I. and BL channels
ren mai wife BL-62 S.I.-3
Pair 3 dai mai man G.B.-41 T.B.-5 Lateral eye and temple region, ears, cheeks,
occiput and shoulders
yang wei mai woman T.B.-5 G.B.-41
Pair 4 ren mai host LU-7 KID-6 Face, throat, thorax, Lungs, diaphragm,
yin qiao mai guest KID-6 LU-7 abdomenCh01-F10028.qxd 2/22/08 2:30 PM Page 29