Lateral leg

  • Actions & innervation of peroneus longus & brevis
  • Appreciation of their arrangement around the lateral malleolus
  • Appreciation of the insertions of the peronei and the clinical correlation to inversion injuries at the ankle
Muscle Innervation Attachments Action
Peroneus Longus Superficial Peroneal O: lateral fibula
I: first metatarsal & medial cuneiform
CROSSES the base of the foot!
Plantarflexion of foot
Eversion of foot
Arch support
Peroneus Brevis Superficial Peroneal O: lower 2/3 of lateral fibula
I: 5th metatarsal
Plantarflexion of foot
Eversion of foot

innervation

Superficial peroneal nerve - L5, S1, S2