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TB-8 Three Yáng Connection
三阳络 〔三陽絡〕 sān yáng luò
Alternate names: 通间 tōng jiān, Connect Between; 通门 tōng mén, Connecting Gate
Channel: TB, hand lesser yáng (shào yáng) triple burner channel
Modern location: An acupoint located on the posterior aspect of the forearm, 4 cùn proximal to the wrist, midway between the radius and the ulna.
Classical location: Obliquely inward one cùn up from Convergence and Gathering (TB-7). From
Local anatomy: See TB-7.
Action: Frees the channels and quickens the network vessels; opens the orifices and relieves pain.
Modern indications: Deafness;
Classical indications: Tooth decay; inability to move the hand and arm; hypersomnia; lack of desire to move the four limbs.
Needle stimulus: Moxa: 5‒7 cones; pole 5‒20 min.
Needle sensation: Distension and numbness, sometimes stretching down to the hand, or up to the elbow, shoulder and chest.
Warning: Though needling has been traditionally contraindicated for this point, TB-8 in has recent years been combined with (joined by a single needle to) PC-4 (xī mén) in acuanesthesia for removal of pulmonary lobes.
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