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KI-3 Great Ravine

太溪 〔太谿〕tài xī

Alternate names: 吕宫 lǚ gōng, Lu Palace; 吕细 lǚ xì, Small Lu

Channel: KI, Foot Lesser Yīn (shào yīn) Kidney Channel

Modern location: An acupoint located at the ankle joint, midway between the medial malleolus and the Achilles tendon (t. calcaneus), level with the tip of the malleolus.

Classic location: Five fēn behind the inner anklebone, in the depression above the heel bone where a pulsating vessel can be felt. (Zhēn Jiǔ Dà Chéng)

Local anatomy: Anteriorly, the posterior tibial artery and vein. The medial crural cutaneous nerve, on the course of the tibial nerve.

Action: Enriches kidney yīn; abates vacuity heat; invigorates original yáng; and rectifies the uterus.

Modern indications: Menstrual irregularities; seminal emission; impotence; frequent urination; constipation; dispersion-thirst; coughing of blood; panting; painful swollen throat; toothache; insomnia; lumbar pain; deafness; tinnitus.

Classic indications: Throat impediment (hóu bì) and swollen pharynx; toothache; kidney vacuity impotence and seminal emission; cold mounting (hán shàn); difficult defecation; mammary welling-abscess (rǔ yōng); heart pain; reversal cold of the extremities; damp itch and sores on the inside of the thigh; propping fullness in the chest and rib-side; kidney disease; febrile disease with profuse sweating; gluey sensation in the mouth; repletion panting and fullness and phlegm tinnitus.

Needle stimulus: Needling: 0.3 cùn perpendicular insertion. Moxa: 3 cones; pole 5‒10 min.

Needle sensation: Localized distension and numbness, the latter sometimes spreading over the soles of the feet.

Point groups: Stream (shù) (earth) and source point (yuán xué); one of the nine needles for returning yáng.

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