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Common Peroneal Nerve (L4–S2) 3D

  • Description

    • * It is the smaller terminal portion of the sciatic nerve.
    • * Passing through the apex of the popliteal fossa, it passes behind the head of the fibula, winds laterally around the neck of the fibula, and pierces the peroneus longus, where it divides into the deep peroneal and superficial peroneal nerves.
    • * It gives rise to the lateral sural cutaneous nerve, which supplies the skin on the lateral part of the back of the leg, and the recurrent articular branch to the knee joint.                                                                                                                                                                                                                                                                                                                          

    • Superficial Peroneal Nerve:

      • * It arises from the common peroneal nerve in the substance of the peroneus longus on the lateral side of the neck of the fibula.
      • * It innervates the peroneus longus and brevis muscles and then emerges by piercing the deep fascia at the lower third of the leg to become subcutaneous.
      • *It descends in the lateral compartment and innervates the skin on the lateral side of the lower leg and the dorsum of the foot.                                                                                                                                                                                                                                                   
    • Deep Peroneal Nerve:
      • * The deep peroneal nerve begins on the lateral side of the neck of the fibula under cover of the upper fibers of the peroneus longus.
      • * It enters the anterior compartment of the leg by piercing the anterior intermuscular septum and extensor digitorum longus.                                                                                                                

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  • Description

    • * It is the smaller terminal portion of the sciatic nerve.
    • * Passing through the apex of the popliteal fossa, it passes behind the head of the fibula, winds laterally around the neck of the fibula, and pierces the peroneus longus, where it divides into the deep peroneal and superficial peroneal nerves.
    • * It gives rise to the lateral sural cutaneous nerve, which supplies the skin on the lateral part of the back of the leg, and the recurrent articular branch to the knee joint.                                                                                                                                                                                                                                                                                                                          

    • Superficial Peroneal Nerve:

      • * It arises from the common peroneal nerve in the substance of the peroneus longus on the lateral side of the neck of the fibula.
      • * It innervates the peroneus longus and brevis muscles and then emerges by piercing the deep fascia at the lower third of the leg to become subcutaneous.
      • *It descends in the lateral compartment and innervates the skin on the lateral side of the lower leg and the dorsum of the foot.                                                                                                                                                                                                                                                   
    • Deep Peroneal Nerve:
      • * The deep peroneal nerve begins on the lateral side of the neck of the fibula under cover of the upper fibers of the peroneus longus.
      • * It enters the anterior compartment of the leg by piercing the anterior intermuscular septum and extensor digitorum longus.                                                                                                                

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