Muscle
Fibularis longus
Everts the foot, supports arches
High-yield
Superficial fibular nerve; everts and plantarflexes the foot; tendon crosses the sole to the medial cuneiform.
Overview
A lateral compartment muscle whose long tendon crosses the sole to support the transverse and lateral arches while everting and plantarflexing the foot.
Reference facts
- Origin
Head and proximal lateral surface of the fibula
- Insertion
Base of the 1st metatarsal and medial cuneiform (crossing the sole)
- Action
Everts and plantarflexes the foot; supports the arches
- Innervation
Superficial fibular (peroneal) nerve (L5, S1, S2)
- Blood supply
Fibular (peroneal) artery