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T.B.-4
  Location On the dorsum of the wrist (above the wrist joint space, ‘dorsal wrist crease’), in the gap between the tendons of the extensor digitorum (on the ulnar aspect) and the extensor digiti minimi muscles (on the radial aspect). How to find As the location of the dorsal wrist crease varies, the wrist joint space should be used for orientation instead (➞ 3.3.3). By moving the patient’s wrist in a relaxed way, the joint space becomes well defined. T.B.-4 is located slightly laterally to the midpoint of the joint space, in the depression between the tendons of the extensor digiti minimi muscle (continuing to the little finger) on its radial aspect and the tendon of the extensor digitorum muscle on its ulnar aspect. The tendons of the extensor digitorum muscle will become more pronounced by moving the three middle fingers. Located on the same level but radial to the tendons of the extensor digitorum muscle is ➞ Ex-UE-3 (zhongquan). Actions/Indications ● Clears Heat, opens the channel, relaxes the tendons. In Japanese acupuncture tradition, T.B.-4, in its function as yuansource point, is used for deficiency syndromes. Special features Yuan-source point | |
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