Comedian Russell Brand is famous for his controversial comments and stunts, past struggles with addiction and his short-lived marriage to singer Katy Perry.
The sciatic nerve begins in the lower back, extends through the buttocks and goes down the length of the leg. It is the longest nerve in the body. The pain that occurs when this nerve becomes inflamed or compressed is called sciatica.
1 The sciatic nerve runs from the lower back, through the buttock, and down the back of each leg. 2  Portions of the sciatic nerve then branch out in each leg to innervate certain parts of the leg-the thigh, calf, foot, toes.he sciatic nerve is the largest single nerve in the body and is composed of individual nerve roots that start by branching out from the spine in the lower back and combine to form the sciatic nerve.. 1  The sciatic nerve starts in the lower back at lumbar segment 3 (L3).