Neurology and Neurorehabilitation

The sciatic nerve, also called the ischiadic or ischiadic nerve, is a massive nerve in people and different vertebrate animals which starts within the lower part of the sacral plexus and runs via the hip joint and down the decrease limb. it's far the longest and widest unmarried nerve in the human frame, going from the pinnacle of the leg to the foot on the posterior component.The sciatic nerve gives the relationship to the anxious device for almost the complete of the pores and skin of the leg, the muscle tissues of the lower back of the thigh, and those of the leg and foot. it is derived from spinal nerves L4 to S3. It includes fibers from both the anterior and posterior divisions of the lumbosacral plexus.In people, the sciatic nerve is fashioned from the L4 to S3 segments of the sacral plexus, a set of nerve fibres that emerge from the sacral a part of the spinal twine. The fibres unite to form a single nerve in the front of the piriformis muscle. The nerve passes beneath piriformis and thru the greater sciatic foramen, quitting the pelvis From here, it travels down the posterior thigh to the popliteal fossa. The nerve travels in the posterior compartment of the thigh behind (superficial to) the adductor magnus muscle, and is itself in the front of (deep to) the long head of the biceps femoris muscle. on the popliteal fossa, the nerve divides into its  branches ,The tibial nerve, which travels down the posterior compartment of the leg into the foot.The common peroneal nerve (additionally called the commonplace fibular nerve), which travels down the anterior and lateral compartments of the leg into the foot.