Atlas of Acupuncture

4 Acupuncture Points of the Twelve Primary Channels

Location

Between the 4th and 5th metatarsal bones, proximal to the metatar-

sophalangeal joints and medial to the tendon of the extensor dig-

itorum longus muscle.

How to find

From the space between the 4th and 5th toes, palpate towards the

ankle. Locate G.B.-42in the groove between the two bones,

proximal to the metatarsophalangeal joints (and proximal to the

heads of the two metatarsal bones). Or:Ask the patient to

abduct their toes so that the branch of the tendon of the extensor

digitorum longus muscle extending to the little toe becomes

more pronounced. Then palpate from the space between the toes

along the groove between the 4th and 5th metatarsal bones from

distal to proximal to where the tendon crosses the groove. G.B.-

42 is located medial (or anterior) to the tendon.

➞G.B.-41is located lateral (or posterior) to the tendon when

continuing to palpate along the groove. ➞BL-65is located

approximately on the same level on the lateral border of the foot,

proximal to the head of the 5th metatarsal bone.

Needling

Vertically or obliquely 0.3–0.8 cun

Actions/Indications

● Moves Liver Qi

● Clears Heat from the Gall Bladder

G.B.-42 Earth Five Meetings DIWUHUI

G.B.-41

Tendons of

the extensor

digitorum longus

Base of the 5th

metatarsal bone

G.B.-42

G.B.-41

G.B.-42

BL-66 BL-65 BL-64

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