nervus tibialis

[TA] tibial nerve: origin, sciatic nerve in lower part of thigh; branches, interosseous nerve of leg, medial sural cutaneous and sural nerves, medial and lateral plantar nerves, and muscular and medial calcaneal branches; distribution, while still incorporated in the sciatic nerve, it supplies the semimembranosus and semitendinosus muscles, long head of biceps, and adductor magnus muscle; it supplies the knee joint as it descends in the popliteal fossa and, continuing into the leg, supplies the muscles and skin of the calf and sole of the foot, and the toes; see individual branches, in this table and under ramus; modality, general sensory and motor.