The medial plantar nerve innervates the medial part of the sole of the foot
The lateral plantar nerve innervates the lateral part of the sole of the foot
The medial calcanean branch of the tibial nerve innervates the skin of the heel
The sole of the foot is innervated by three branches of the tibial nerve: The medial plantar nerve (MPN), the lateral plantar nerve (LPN) and the medial calcaneal nerve (MCN)