Also called: calf bone
The fibula is the slender lateral bone of the leg. It carries little body weight but provides attachment for muscles and forms the lateral malleolus, which stabilises the ankle joint. The common fibular nerve winds around its neck just below the knee.
| Type | Long bone. |
|---|---|
| Location | Lateral leg, parallel to the tibia. |
| Landmarks | Head, neck, shaft, lateral malleolus, malleolar fossa. |
| Articulations | Tibia (superior and inferior tibiofibular joints) and talus (ankle joint). |
| Muscle attachments | Biceps femoris, fibularis muscles, soleus, tibialis posterior, extensor digitorum longus. |
3D model: BodyParts3D (CC BY 4.0), adult male reference anatomy. Highlighted structure shown with nearby bones for context.
The fibula stabilises the ankle by forming the lateral wall of the mortise that grips the talus.
Only a small fraction; most weight is transmitted through the tibia.
The common fibular (peroneal) nerve.
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