Deep peroneal nerve

Last revised by Dr Jay Gajera on 12 Mar 2022

The deep peroneal (fibular) nerve is one of two terminal branches of the common peroneal nerve.

Summary

Gross anatomy

Origin

Arises as one of two terminal branches of the common peroneal nerve deep to peroneus longus muscle.

Course

Courses medially under peroneus longus muscle to pierce the inter-muscular septum. After entering the anterior compartment of the leg, it makes a sharp turn and courses inferiorly on the anterior aspect of the interosseous membrane accompanied by the anterior tibial vessels. The deep peroneal nerve passes under the extensor retinaculum at the ankle between the tendons of extensor hallucis longus and extensor digitorum longus along with the anterior tibial vessels. 

Branches and supply

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