Atlas of Acupuncture

4.6 The Small Intestine Channel System – Hand taiyang(shou tai yang jing luo)

Location

At the medial end of the supraspinous fossa.

How to find

At its medial end, the scapular spine fans out in a deltoid shape,

curving round in a superior direction. When palpating, this feels

like a ‘crooked wall’, hence its name. S.I.-13is located on the

scapula, in the slightly concave bend, at the medial origin of the

supraspinatus muscle.

Needling

0.5–1 cun vertically or obliquely in a lateral direction. No danger

of puncturing the pleura if located correctly.

Actions/Indications

● Opens the channel

Crooked Wall QUYUAN S.I.-13

Spinous process C7

Spinous process C1

Spinous process T4

S.I.-13

S.I.-11

Triceps brachii,

long head

Trapezius

Scapular

spine

Deltoid

Teres major

Triceps brachii,

lateral head

Biceps brachii

Trapezius (superior

fibres)

S.I.-13

S.I.-12

L.I.-16

S.I.-10

G.B.-21

T.B.-15

Trapezius

(inferior fibres)

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