Sciatic Nerve

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Sciatic nerve.jpeg
Sciatic Nerve
Nerve Type Mixed nerve
Origin L4, L5, S1, S2, S3
Course Exits the pelvis through the greater sciatic foramen to enter the leg between ischial tuberosity and femoral greater trochanter, then courses inferiorly through the posterior compartment of the thigh.
Major Branches Tibial Nerve, Common Peroneal Nerve
Sensory innervation No direct sensory function, but has indirect sensory supply to the foot (tibial nerve, common peroneal nerve) and leg (except medial portion which is saphenous nerve)
Motor innervation Extensive motor innervation to thigh, leg, ankle, foot.