fibularis longus

A superficial muscle in the lateral compartment of the leg, and acts to evert and plantar flex the ankle. It is situated at the upper part of the lateral side of the leg, and is the most superficial of the three peroneus muscles. It is innervated by the superficial fibular nerve (superficial peroneal nerve). [WP,unvetted]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the fibularis longus is

A superficial muscle in the lateral compartment of the leg, and acts to evert and plantar flex the ankle. It is situated at the upper part of the lateral side of the leg, and is the most superficial of the three peroneus muscles. It is innervated by the superficial fibular nerve (superficial peroneal nerve). [WP,unvetted]. The atlas records it as a muscle at the organ scale in the human body.

Where the fibularis longus is

It sits in the lower limb, within the muscular system. Positioned deliberately as part of this species body plan.

What the fibularis longus connects to

The atlas records 6 typed relationships for it, across 6 kinds of connection. part of hindlimb zeugopod.

Supply and innervation

Innervation: superficial fibular nerve.

Also called

Also recorded as musculus peroneus longus, peroneus longus, peroneus longus muscle, fibularis longus, fibularis longus muscle and peronaei longus, and 2 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001387, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: hindlimb zeugopod.
• A kind of: hindlimb zeugopod muscle.
• antagonist of: tibialis anterior.
• inserts into: metatarsal bone of digit 1.
• originates from: fibula.
• Innervated by: superficial fibular nerve.

Questions

Where is the fibularis longus?

It sits in the lower limb, within the muscular system. Positioned deliberately as part of this species body plan.

What does the fibularis longus connect to?

Part of: hindlimb zeugopod.

Is the fibularis longus the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.