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Alternate names: BL-36

Channel: BL, Foot Greater Yáng (tài yáng) Bladder Channel

Modern location: An acupoint located on the upper back, level with the inferior border of the spinous process of the second thoracic vertebra, 3 cùn lateral to the midline.

Classic location: Below the second vertebra, on the inner border of the shoulder blade, three cùn either side of the spine. (Zhēn Jiǔ Jiǎ Yǐ Jīng)

Local anatomy: The posterior branch of the intercostal artery, the descending branch of the transverse cervical artery. Medial cutaneous branches of the posterior rami of the 2rd and 3rd thoracic nerve; deeper, their lateral branches and the dorsal scapular nerve.

Action: Courses wind and disperses cold; soothes the sinews and quickens the network vessels.

Modern indications: Painful stiff neck and nape; pain and tension in the shoulder and back; numbness and tingling of the elbow and arm.

Classic indications: Insensitivity of the elbow and arm; wind taxation.

Needle stimulus: Needling: 0.3‒0.5 cùn oblique insertion. Moxa: 3‒7 cones; pole 10‒20 min.

Point groups: Intersection point (jiāo huì xué) of the hand and foot greater yáng (tài yáng) channels (SI and BL).

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