The sciatic nerve branches (the tibial nerve and the common peroneal nerve) innervate the entire leg, ankle and foot
The only exception is the saphenous nerve territory and a strip of skin distal to the popliteal fossa which is innervated by the posterior femoral cutaneous nerve
The green area is the cutaneous innervation area of the saphenous nerve. The saphenous nerve innervates the skin on the medial side of the leg and foot. The saphenous nerve is the major branch from the femoral nerve (see the femoral nerve).
