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ST-7 Below the Joint
下关 〔下關〕xià guān
Channel: ST, Foot Yáng Brightness (yáng míng) Stomach Channel
Modern location: An acupoint located anterior to the ear, straight above ST-6, in the hollow immediately below the inferior border of the zygomatic arch.
Classic location: Below Guest-Host (GB-3 alternate name), on the lower aspect of the pulsating vessel in front of the ear. A hollow felt when the mouth is closed disappears when the mouth is opened. The point is found in lateral recumbent posture with the mouth closed. (Zhēn Jiǔ Dà Chéng)
Local anatomy: Superficially, the transverse facial artery and vein; at the deepest level, the maxillary artery and vein. The zygomatic branch of the facial nerve and the branches of the auriculotemporal nerve.
Action: Courses wind and quickens the network vessels; opens the orifices and sharpens the hearing.
Modern indications: Deafness; tinnitus; purulent ear; toothache; clenched jaw; deviated eyes and mouth.
Classic indications: Clenched jaw; loss of voice;
Needle stimulus: Needling: 0.3‒0.5 cùn perpendicular insertion; 1.0‒1.5 cùn transverse insertion joining ST-6 (jiā chē). Moxa: 3 cones; pole 5‒10 min.
Point groups: Intersection point (jiāo huì xué) of the stomach and gallbladder channels.
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