[Location] Localized in the supine position or in the erect sitting position with the sole was put flatly. On the foot, on the lateral side of the end of the second toe, 0.1 cun from the corner of the nail. (Fig.48)
 
[Regional Anatomy] Skin→subcutaneous tissue→the base of nail The distribution of the dorsal digital nerve derived from the medial dorsal cutaneous nerve of foot, and the dorsal digital artery and vein of foot.