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TB-20 Angle Vertex
角孙 〔角孫〕jiǎo sūn
Channel: TB, Hand Lesser Yáng (shào yáng) Triple Burner Channel
Modern location: An acupoint located on the lateral aspect of the head, immediately superior to the apex of the ear, just above the hairline.
Classic location: Up from Skull Rest (TB-19), at the place above the ear where a hollow appears when the mouth is opened. (Yī Zōng Jīn Jiàn)
Local anatomy: The branches of the superficial temporal artery and vein. The branches of the auriculotemporal nerve.
Action: Clears the head and brightens the eyes; courses wind and quickens the network vessels.
Modern indications:
Classic indications: Swelling of the gums that prevents chewing; eye screens; stiffness in the nape and neck; red swollen auricle.
Needle stimulus: Needling: 0.1 cùn perpendicular insertion or 0.2‒0.8 cùn transverse insertion. Moxa: 3 cones; pole 5‒10 min.
Point groups: Intersection point (jiāo huì xué) of the gallbladder and triple burner channels.
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