Henry Gray (18251861). Anatomy of the Human Body. 1918.
with the deep veins on the dorsum of the foot, and receives numerous large tributaries from the back of the leg. Before it pierces the deep fascia, it gives off a branch which runs upward and forward to join the great saphenous vein. The small saphenous vein possesses from nine to twelve valves, one of which is always found near its termination in the popliteal vein. In the lower third of the leg the small saphenous vein is in close relation with the sural nerve, in the upper two-thirds with the medial sural cutaneous nerve.
The Deep Veins of the Lower Extremity
The deep veins of the lower extremity accompany the arteries and their branches; they possess numerous valves.