Localized in supine position or the erect sitting position. And put with the foot flatly, on the medial side of the big toe, 0.1 cun from the corner of the nail. (Fig.30)
Regional Anatomy
Skin--subcutaneous tissues'the base of nail. The distribution of the branch of the medial dorsal cutaneous nerve of the foot, the dorsal digital nerve, artery and vein.
