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 11th thoracic vertebra (T11).
How to find
In a sitting position with the arms hanging down, the spinous
process of T7 is generally on the level of the inferior angle of the
scapula (➞3.4.2). From there, count down 4 spinous processes
to the lower border of the spinous process of T11 and locate
BL-493 cun lateral to this point. Or:From the articulation of
the most inferior rib, palpate in a superior direction to T11.
Or:Use the lumbar spine for reference (➞3.4.3).
Located on the same level are ➞Du-6(on the midline), a point
of ➞Ex-B-2(0.5 cun lateral to the midline) and ➞BL-20(1.5
cun lateral to the midline).
Needling
Obliquely 0.3–0.8 cun. Caution: Pneumothorax.
Actions/Indications
● Clears Damp-Heat
● Harmonises the Spleen and the Stomach
BL-49 Abode of Thought YISHE
Spinous process C7
Spinous process T3
Spinous process T7
Spinous process T11
Spinous process T12
Midline
Base of the
scapular spine
Inferior
angle
3 cun
Bladder channel,
lateral branch
Medial borderof the scapula
BL-49
17
18
20
23
25
8
6
4
Ex B-6^3
52
49
47
46
7
8
9
10
11
12
1
2
3
4
5
9
Ex B 8
Ex B-4
Ex B-5 Ex B-5
Ex B-7
Ex B-3
Spinous process T11 Du-6
Spinous process T12
Bladder channel
BL-20
Spinous process T11
Spinous process T12
Spinous process L1
Spinous process L2
Spinous process L3
Ex-B-2
(parts)
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