The common fibular nerve wraps around the fibular neck. The nerve then pierces the fascia of the leg to enter the anterior compartment of the leg. In the fossa, it is positioned medially to the tendon of the biceps femoris muscle, and lateral to the gastrocnemius muscle. It then traverses the popliteal fossa inferolaterally, towards the fibular head. The nerve arises from the sciatic nerve at the distal third of the thigh, near the apex of the popliteal fossa. The common fibular (peroneal) nerve contains mainly fibers derived from the posterior division of the sacral plexus. The common fibular (peroneal) nerve (root value L4-S2) is the smaller of two terminal branches of the sciatic nerve, the other being the tibial nerve. Posterior root of sciatic nerve, Common peroneal division of sciatic nerve Sensory: Skin of anterolateral leg and dorsum of foot, skin of web space between great and 2nd toes Motor: Anterior leg muscles (tibialis anterior, extensor hallucis longus, extensor digitorum longus) lateral leg muscles (fibularis longus, fibularis brevis) dorsal foot muscles (extensor digitorum brevis, extensor hallucis brevis) Key facts about the common fibular (peroneal) nerve OriginĪrticular branches, lateral sural cutaneous nerve, sural communicating branch, superficial fibular nerve, deep fibular nerve This article will discuss the anatomy and function of the common fibular (peroneal) nerve. The deep fibular (peroneal) nerve, on the other hand, mainly supplies the muscles of the anterior compartment of the leg and the dorsum of the foot. The superficial fibular (peroneal) nerve supplies the muscles of the lateral compartment of the leg and provides sensation to the anterolateral aspect of the leg. When it reaches the anterior compartment of the leg (underneath the fibularis longus muscle), the nerve divides into the superficial fibular (peroneal) nerve and deep fibular (peroneal) nerve. The common fibular (peroneal) nerve courses inferolaterally through the popliteal fossa, towards the head of the fibula. It arises as a terminal branch of the sciatic nerve around the apex of the popliteal fossa. The common fibular (peroneal) nerve (L4-S2) is a short, thin nerve located in the posterior compartment of the lower extremity. Common peroneal nerve, Nervus peroneus communis
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