Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Sciatic Nerve ====== * SCIATIC NERVE * ORIGIN * Union of roots in front of piriformis muscle * The lumbosacral trunk from the L4 and L5 roots * descends between the sacral promontory and ala * and the S1 to S3 roots emerge from the ventral sacral foramina * COURSE * EXIT OF PELVIS * passes beneath piriformis through greater sciatic foramen * THIGH * travels down the posterior thigh to popliteal fossa * travels in posterior compartment of thigh * superficial to adductor magnus muscle * deep to long head of biceps femoris muscle * Just above popliteal fossa * divides in to two terminal branches * The tibial nerve, * travels down the posterior compartment of the leg into the foot * The common fibular nerve (also called the common peroneal nerve), * travels down the anterior and lateral compartments of the leg into the foot * POPLITEAL FOSSA {{:anatomy:sciatic-nerve-variations.png}} {{:anatomy:sciatic_nerve-rt.png}} en/sciatic-nerve.txt Last modified: 2023/06/21 12:27by 127.0.0.1