Medial plantar nerve

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The medial plantar nerve is the major sensory nerve in the sole of the foot.

Summary

  • origin: larger terminal division of the tibial nerve
  • course: from its origin under the flexor retinaculum, it passes deep to abductor hallucis, then appears between it and flexor digitorum brevis, gives off a medial proper digital nerve to the hallux, and divides near the metatarsal bases into three common plantar digital nerves
  • motor supply: four intrinsic muscles - abductor hallucis, flexor digitorum brevis, flexor hallucis brevis, and first lumbrical
  • sensory supply: skin on most of the anterior two-thirds of the sole and adjacent surfaces of the medial three and one-half toes, which includes the great toe