[Location] Localized with the wrists on the lateral side, and the elbow flexed. When the elbow is flexed, the point is on the lateral end of the transverse cubital crease, at midpoint between LU5 (Chize) and the lateral epicondyle of the humerus. (Fig.14)
 
[Regional Anatomy] Skin→subcutaneous tissue→extensor carpi radialis iongus and extensor carpi radialis brevis→brachioradialis. Superficial layer, the distribution of the subordiantial ramus of the cephalic vein, and the posterior antebrachial cutaneous nerve; deep layer, the anastomotic branch of radial nerve, the radial recurrent artery and vein, and the radial collateral artery and vein.