5 The Eight Extraordinary Vessels (qi jing ba mai) with Points
Connections with other channels/Organs
● BL, G.B., ST, S.I., T.B. and L.I. primary channels, du mai
Clinical importance
● Connectsand regulatesall Yang channelsof the body. It
connects the BL, G.B., ST, S.I., T.B. and L.I. channels as well
as the du maiand controls the Exterior of the whole body
(especially the taiyangand shaoyangchannels)
● Harmonises the Nutritive Qi (ying qi) and the Defensive Qi
(wei qi)
● Expels Exterior Wind-Cold, especially with shaoyang-
syndrome.
Du-17
External
occipital
protuberance
2.25 cun
G.B.-19 1,5 cun
G.B.-19(naokong): On the occiput, level with the upper border
of the external occipital protuberance (➞ Du-17), 2.25 cun
lateral to the midline
BL-10
Occipital
bone
Axis
G.B.-20
G.B.-20 Lower
border of
the occiput
Sternocleido-
mastoid
G.B.-20(fengchi): On the lower border of the occipital bone, in
the depression between the origins of the sternocleidomastoid
and trapezius
Atlas
Du-16
G.B.-20
Occipital G.B.-20
bone
Lower
border of
the occiput
External
occipital
protuberance
Du-16(fengfu): On the posterior midline, directly below the
external occipital protuberance, in the depression between
the origins of the trapezius
BL-10
Du-15
Axis
G.B.-20
Occipital G.B.-20
bone
Lower
border of
the occiput
Sternocleido-
mastoid
Du-15(yamen): On the occiput, on the posterior midline, in
the depression between the 1st (atlas) and 2nd cervical
vertebrae, approximately 0.5 cun below ➞ Du-16
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