4 Acupuncture Points of the Twelve Primary ChannelsLocation
3 cun lateral to the posterior midline, on the level of the lower
border of the spinous process of the 2nd thoracic vertebra (T2).How to find
After locating the spinous process of C7 (➞3.4.1), count down 2
spinous processes to the lower border of the spinous process of T2.
Locate BL-413 cun lateral from the midline (with the shoulders
relaxed and the arms hanging loosely down, 3 cun corresponds
on this level to the distance from the midline to the medial bor-
der of the scapula). Note: From BL-41to ➞BL-54, all points on
the BL channel are located on its outer branch.
Located on the same level are a point of ➞Ex-B-2 (0.5 cun lat-
eral to the midline), ➞BL-12(1.5 cun lateral to the midline) and
➞S.I.-13(more laterally, on the scapula).Needling
Obliquely 0.3–0.5 cun. Caution: Pneumothorax.Actions/Indications
● Expels pathogenic factors such as Wind and Cold
● Opens the channel and the luovessels, alleviates painSpecial features
Meeting point with the S.I. channelBL-41 Attached Branch FUFEN
Spinous process C7MidlineBase of the
scapular spineInferior
angle
3 cunBladder channel,
lateral branchMedial borderof the scapula
Spinous process T3Spinous process T3Spinous process T7Spinous process T12BL-41151718141247 84644421 2 3 4 5 6 7 8 910S.I.-12
S.I.-1011 1313119S.I.-15Ex B 3BL-12Spinous process T2
Spinous process T3Spinous process C7
Spinous process C1 S.I-13Ex-B-2
(parts)Spinous process L1
Spinous process L2
Spinous process L3Ch04.7a-F10028.qxd 2/23/08 3:55 PM Page 288