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Fibularis (Peroneus) Longus
Region: Leg & Foot Muscles · All leg & foot muscles
Fibularis (Peroneus) Longus at a glance
| Origin | Head and upper lateral surface of the fibula |
|---|---|
| Insertion | Base of the first metatarsal and medial cuneiform (underside, crossing the sole) |
| Actions | Turns the sole outward (eversion); Helps point the foot downward; Supports the arches of the foot like a stirrup |
| Nerve supply | Superficial fibular nerve (L5–S2) |
◆ Good to know
Its tendon crosses the sole diagonally and, with tibialis anterior, forms the 'stirrup' of the foot; the common fibular nerve winds around the fibular neck just above its origin.
More Leg & Foot Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.