Fibularis longus
Peroneus longus · Lower legs
- Origin
- Head and upper lateral surface of the fibula
- Insertion
- Base of the first metatarsal and the medial cuneiform
- Action
- Everts the foot and assists plantarflexion
- Nerve supply
- Superficial fibular nerve (L5–S1)
The longer, more superficial fibularis muscle. Its tendon passes behind the outer ankle and crosses under the sole to the big-toe side, helping support the arch of the foot.
Fibularis longus anatomy page →