Anterior lower leg
Fibularis tertius
Dorsiflexes and everts the foot. it may be absent in some people
- Origin
- Distal anterior fibula and adjacent interosseous membrane
- Insertion
- Dorsal base of the fifth metatarsal
- Primary actions
- Dorsiflexes and everts the foot. it may be absent in some people
Educational anatomy reference only. This page does not diagnose pain, injury, or movement limitations.
From anatomy to action
Explore the movement, not just the muscle.
A single muscle rarely explains a movement by itself. Use the related movement content to see how this anatomy may contribute, then choose a focused program when you want a complete progression.
Corrective movement strategies and exercises
Mobility focus
Valgus Knee (Knee Moving Inward)
Explore comfortable control of the foot, knee, and hip during squats, steps, landings, and single-leg tasks.
Open corrective movement strategy
Mobility focus
Foot Pronation During Movement
Explore foot and ankle control while preserving comfortable, adaptable movement during standing, walking, and squatting.
Open corrective movement strategyComplete guided progressions
Ready to follow a focused plan?
These programs include this muscle through a related guide or corrective recipe.