Lateral Leg Muscles

Question 1

Peroneus Longus

Answer 1

O: proximal two-thirds of lateral surface of fibula, adjacent fascia and intermuscular septa

I: base of first metatarsal, medial cuneiform

A: eversion and weak plantar flexion of foot

In: superficial peroneal nerve (sometimes also branch from common or deep peroneal nerve)

Question 2

Peroneus Brevis

Answer 2

O: distal two-thirds of lateral surface of fibula, adjacent intermuscular septa

I: dorsal surface of base of fifth metatarsal

A: eversion and weak plantar flexion of the foot

In: superficial peroneal nerve