The small saphenous vein penetrates deep fascia in the upper part of the posterior leg and joins the popliteal vein.
Finding the tarsal tunnel—the gateway to the foot
The tarsal tunnel (Fig. 6.133) is formed on the medial side of the foot in the groove between the medial malleolus and the heel (calcaneal tuberosity) and by the overlying flexor retinaculum.