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Common peroneal nerve
Sensory innervation - lower extremity
Peroneal Nerve (aka Fibular Nerve)
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Anterior leg
Deep peroneal nerve
Innervates:
Tibialis anterior
(L4, L5)
Provides foot dorsiflexion and to a lesser extent foot inversion.
Extensor digitorum longus
,
extensor hallucis longus
, and
peroneus tertius
(all supplied by L5, S1)
Lateral leg
Superficial peroneal nerve
(lateral leg)
Innervates:
Peroneus longus
and
peroneus brevis
(both L5, S1).
Foot
Deep peroneal nerve
Innervates:
The short extensor muscles of the foot:
extensor digitorum brevis
and
extensor hallucis brevis
(both L5, S1).
Key compression sites
Peroneal nerve
The fibular neck: the continuation of the head of the fibula (the top of the lateral leg bone).
Causes foot drop.
Sensory innervation
The common peroneal nerve derives a common sensory trunk that produces both the
lateral sural cutaneous nerve
and also the
sural communicating branch
.
Related Tutorials
Peroneal & Tibial Nerves - Essentials
Peroneal & Tibial Nerves - Advanced