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Common fibular (peroneal) nerve Animation: Course, Branches, Motor and sensory innervation | USMLE

Origin: The Common Fibular Nerve originates from the Sciatic Nerve, with a root value of L4S2.

Branches:

The Common Fibular Nerve has several branches, including:
Articular branches
Lateral sural cutaneous nerve
Sural communicating branch
Superficial fibular nerve
Deep fibular nerve

Motor Supply:

The Common Fibular Nerve provides motor supply to the following muscles:
Anterior leg muscles, including the tibialis anterior, extensor hallucis longus, and extensor digitorum longus.
Lateral leg muscles, including the fibularis longus and fibularis brevis.
Dorsal foot muscles, including the extensor digitorum brevis and extensor hallucis brevis.

Sensory Supply:

The Common Fibular Nerve provides sensory innervation to:
The skin of the anterolateral leg and the dorsum of the foot.
The skin of the web space between the great and 2nd toes.

The Common Fibular Nerve plays an essential role in leg and foot movements, particularly in controlling the muscles that allow for foot eversion and dorsiflexion. Damage to this nerve can cause foot drop, a condition characterized by the inability to lift the front part of the foot.

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