Course and innervation:
Medial plantar nerve | Lateral plantar nerve | |
---|---|---|
Origin | Larger branch of tibial nerve | Smaller branch of tibial nerve |
Course | Deep to abductor hallucis muscle Between 1st and 2nd plantar layers | Deep to abductor hallucis muscle Between 1st and 2nd plantar layers |
Motor innervation | Mnemonic: LAFF muscles 1. 1st Lumbrical 2. Abductor hallucis 3. Flexor digitorum brevis 4. Flexor hallucis brevis | All other intrinsic plantar muscles |
Sensory innervation | Anterior 2/3 of medial sole and medial 3 and 1/2 toes including nail beds on dorsum | Anterior 1/3 of lateral sole and lateral 1 and 1/2 toes |
Baxter’s nerve: