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The sciatic nerve is the largest peripheral nerve in the body and innervates significant portions of the skin and muscles of the thigh, leg, and foot. The sciatic nerve originates from spinal nerves L4-S3. It forms in the pelvis from nerves of the sacral plexus, and exits the greater sciatic foramen just underneath the piriformis.
Sciatica, a condition characterized by pain running along the sciatic nerve (which originates at the base of the spine and runs along the back of each leg), is no joke. Though it can vary in ...
The sciatic nerve is responsible for both muscle movement and sensory sensations of the legs. Sciatica is typically characterized by nerve pain like numbness, weakness, burning, or tingling ...
Sciatica can be extremely uncomfortable and travel the entire course of the nerve from the glutes all the way to the foot or part way down the back of the thigh, Chellsen explains. Common causes ...
Sciatica may also occur during pregnancy, especially during later stages, as a result of the weight of the fetus pressing on the sciatic nerve during sitting or during leg spasms. [15] While most cases do not directly harm the woman or the fetus, indirect harm may come from the numbing effect on the legs, which can cause loss of balance and falls.
Piriformis syndrome occurs when the piriformis irritates the sciatic nerve, which comes into the gluteal region beneath the muscle, causing pain in the buttocks and referred pain along the sciatic nerve. [8] This referred pain is known as sciatica. Seventeen percent of the population has their sciatic nerve coursing through the piriformis muscle.
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