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SP-18 Celestial Ravine
天溪 〔天谿〕tiān xī
Channel: SP, Foot Greater Yīn (tài yīn) Spleen Channel
Modern location: An acupoint located on the chest, in the fourth intercostal space, 6 cùn lateral to the midline.
Classic location: In a depression one cùn and six fēn below Chest Village (SP-19), six cùn from the midline of the chest. The point is located in supine posture. (Zhēn Jiǔ Dà Chéng)
Local anatomy: Branches of the lateral thoracic artery and vein, the thoracoepigastric artery and vein, the 4th intercostal artery and vein. The lateral cutaneous branch of the 4th intercostal nerve.
Action: Loosens the chest and rectifies qì; downbears counterflow and suppresses cough.
Modern indications:
Classic indications:
Needle stimulus: Needling: 0.4‒0.5 cùn outward oblique insertion. Moxa: 5 cones; pole 5‒20 min.
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