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Peroneus Brevis Origin, Insertion, Action

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Origin: Distal two-thirds of the lateral surface of the fibula, and the anterior and posterior intermuscular septa

Insertion: Tubercle on the base of the lateral aspect of the fifth metatarsal

Actions: Eversion, plantarflexion, and abduction of the foot

Innervation: Superficial Peroneal Nerve (L5, S1)

Blood Supply:
Branches of the anterior tibial and peroneal artery

Image showing the peroneus brevis origin and insertion points

Looking for pain and symptom information? Visit the Peroneus Muscles Pain Page.

Primary Actions of the Peroneus Brevis Muscle

1. Dorsiflexion of the foot at the ankle

Agonists:  Peroneus Longus

Antagonists:

  • Tibialis Anterior
  • Tibialis Posterior