4 Acupuncture Points of the Twelve Primary Channels
Location
3 cun lateral to the posterior midline, on the level of the lower
border of the spinous process of the 6th thoracic vertebra (T6).
How to find
After locating the spinous process of C7 (➞3.4.1), count down
6 spinous processes to the lower border of the spinous process
of T6. Located on this level and 3 cun lateral to the midline is
BL-45. Or:With the patient seated and their shoulders in a relaxed
position, the spinous process of T7 is generally on the level of
the inferior angle of the scapula (➞3.4.2). Locate BL-45on the
level of the spinous process of T6, 3 cun lateral to the midline.
Located on the same level are ➞Du-10(on the midline), a point
of ➞Ex-B-2(0.5 cun lateral to the midline) and ➞BL-16
(1.5 cun lateral to the midline).
Needling
Obliquely 0.3–0.8 cun. Caution: Pneumothorax.
Actions/Indications
● Expels pathogenic factors, especially Wind and Heat
● Descends the Lung Qi and unbinds the chest
● Strengthens the Qi and Blood and alleviates pain
BL-45 Cry of Pain YIXI
Spinous process C7
Midline
Base of the
scapular spine
Inferior
angle
3 cun
Bladder channel,
lateral branch
Medial borderof the scapula
Spinous process T3
Spinous process T7
Spinous process T6
Spinous process T12
BL-45
15
17
18
14
12
47 8
46
44
42
1 2 3 4 5 6 7 8 9
10
S.I.-12
S.I.-10
11 13
13
11
9
S.I.-15
Ex B 3
Du-10
DFS BWK 6
Spinous process T7 Inferior
angle
Inferior
angle
BL-16
Spinous process T6
Spinous process T7
Ex-B-2
(parts)
Spinous process L1
Spinous process L2
Spinous process L3
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