Sciatica spinal nerve which extending from lumbar to sacral plex
Sciatica nerve which extending from lumbar nd sacral plexuses
The sciatic nerve is the largest and longest spinal nerve in the human body. Extending from the lumbar and sacral plexuses in the lower back, the sciatic nerve runs through the buttocks and into the thighs. It delivers nerve signals to and from the muscles and skin of the thighs, lower legs and feet.