Origin
Fibula lower 1/3 or 1/4, anterior intermuscular septum, & interosseous membrane
Insertion
Dorsal aspect, base of the fifth metatarsal
Actions
- Dorsiflexion of the foot
- Eversion of the foot
Innervation
Deep fibular nerve (aka deep peroneal nerve), L5 & S1
Blood Supply
- Anterior tibial artery
- Perforating branch of the fibular artery
Would you like to learn more about the fibularis tertius muscle? Then check out the fibularis tertius muscle article and video by clicking the link below: Fibularis Tertius Muscle Anatomy
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