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BL-46 Diaphragm Pass
膈关 〔膈關〕gé guān
Alternate names: BL-41
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 seventh thoracic vertebra, 3 cùn lateral to the midline.
Classic location: In the depression three cùn either side of the spine, below the seventh vertebra. The point is found in straight sitting posture with shoulders spread. (Zhēn Jiǔ Dà Chéng)
Local anatomy: Posterior branches of the intercostal artery and vein. Medial cutaneous branches of the posterior rami of the 6th and 7th thoracic nerves; deeper, their lateral branches.
Action: Fortifies the spleen and disinhibits dampness; harmonizes the stomach and abducts stagnation; soothes the sinews and quickens the network vessels.
Modern indications: Oppression in the chest; retching and vomiting; belching; painful stiffness of the spinal column.
Classic indications: Blood disorders; yellow urine; body pain.
Needle stimulus: Needling: 0.5 cùn downward oblique insertion. Moxa: 3‒7 cones; pole 5‒20 min.
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