Muscle
Fibularis brevis
Everts the foot
High-yield
Everts the foot; superficial fibular nerve. Avulsion of the 5th metatarsal base can involve its tendon.
Overview
A lateral compartment muscle deep to fibularis longus that everts and weakly plantarflexes the foot; its tendon inserts on the 5th metatarsal.
Reference facts
- Origin
- Distal lateral surface of the fibula
- Insertion
- Tuberosity at the base of the 5th metatarsal
- Action
- Everts and weakly plantarflexes the foot
- Innervation
- Superficial fibular (peroneal) nerve (L5, S1, S2)
- Blood supply
- Fibular (peroneal) artery
Frequently asked questions
What does the fibularis brevis do?
The fibularis brevis everts and weakly plantarflexes the foot.
What nerve innervates the fibularis brevis?
The fibularis brevis is innervated by the superficial fibular (peroneal) nerve (L5, S1, S2).
Where does the fibularis brevis attach?
The fibularis brevis originates from the distal lateral surface of the fibula and inserts on the tuberosity at the base of the 5th metatarsal.
What is the blood supply of the fibularis brevis?
The fibularis brevis is supplied by the fibular (peroneal) artery.