The leg has 4 compartments:

1. Anterior compartment-
   • Muscles:
     • Tibialis anterior
     • Extensor hallucis longus
     • Extensor digitorum longus
     • Peroneus tertius
   • Nerve supply- deep fibular(peroneal) nerve.
   • Function- dorsiflexion of foot & ankle.
2. Lateral compartment-
   • Muscle:
     • Tibialis anterior
     • Extensor hallucis longus
   • Nerve supply- superficial fibular(peroneal) nerve.
   • Function- plantar flexion & eversion of foot
3. Deep posterior compartment-
   • Muscles:
     • Tibialis posterior
     • Flexor digitorum longus
     • Flexor hallucis longus
   • Nerve supply- tibial nerve
   • Function- plantar flexion & inversion of foot
4. Superficial posterior compartment-
   • Muscles:
     • Gastrocnemius
     • Soleus
     • Plantaris
   • Nerve supply- tibial nerve
   • Function- plantar flexion of foot & ankle