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TB-5 Outer Pass

外关 〔外關〕wài guān

Channel: TB, Hand Lesser Yáng (shào yáng) Triple Burner Channel

Modern location: An acupoint located on the posterior aspect of the forearm, 2 cùn proximal to the wrist, midway between the radius and the ulna.

Classic location: Between the two bones two cùn behind the wrist, opposite Inner Pass (PC-6). (Zhēn Jiǔ Dà Chéng)

Local anatomy: At the deeper level, the posterior and anterior interosseous arteries and veins. The posterior antebrachial cutaneous nerve; deeper, the posterior interosseous nerve of the radial nerve and the anterior interosseous nerve of the median nerve.

Action: Disperses wind and resolves the exterior; clears heat and resolves toxins; frees the channels and quickens the network vessels.

Modern indications: Febrile disease; headache; painful red swollen eyes; deafness; tinnitus; scrofula; pain in the cheek; rib-side pain; impediment pain in the upper limbs with inhibited bending and stretching of the arm; pain in the fingers; tremor of the hand.

Classic indications: Swelling of the pharynx; deviated mouth; abdominal pain and constipation.

Needle stimulus: Needling: 0.3‒1.0 cùn perpendicular insertion. Moxa: 2‒3 cones; pole 5‒15 min.

Needle sensation: Distension and numbness, sometimes spreading down to the fingers or up to the elbow and shoulder.

Point groups: Network point (luò xué); confluence point (bā mài jiāo huì xué) of the yáng linking vessel (yáng wéi mài).

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