Zhishen (T 11.15)

The Master Tung Acupuncture point, T 11.15 Zhishen, is a three-point set on the dorsal aspect of the ring finger, TH channel, evenly distributed along the ulnar margin of the proximal phalangeal bone (line F). Divide the proximal phalanx into fourths, and locate these three points at ¼, ½, and ¾ of the distance between the MCP and PIP joints.