Medial Plantar Nerve
The medial plantar nerve, the larger of the two terminal branches of the
tibial nerve (which stem from the sciatic nerve), accompanies the medial
plantar artery. From its origin under the "flexor retinaculum" it passes
deep into the muscles of the toes, and becomes the "proper plantar digital
nerve" to the great toe. It finally divides opposite the bases of the toes
into the three "common digital nerves."