[Location] Localized in the supine position or in the lateral recumbent position. On the lateral aspect of the lower leg, in the depression anterior and inferior to the head of the fibula. (Fig.57)
 
[Regional Anatomy] Skin→subcutaneous tissue→the peroneus longus→the extensor digitorum longus. Superficial layer, the distribution of the lateral sural cutaneous nerve; deep layer, the anterior tibial recurrent artery and vein, the branches or the subordiantial ramus of the inferior lateral genicular artery and vein, and the branch of the common peroneal nerve.