The small saphenous vein originates from the lateral side of the arch and passes posterior to the lateral malleolus and onto the back of the leg.
The foot is supplied by the tibial, deep fibular, superficial fibular, sural, and saphenous nerves:
All five nerves contribute to cutaneous or general sensory innervation.
The tibial nerve innervates all intrinsic muscles of the foot except for the extensor digitorum brevis, which is innervated by the deep fibular nerve.