It is still unproven as to why the moth is driven to light â but the best hypothesis is that the moth navigates by lunar light. In the absence of moonlight, the moth moves to the next best thing: man-made light. Even at the risk of loosing its life, the moth is ever-vigilant in following its path of light.
The piriformis is a muscle found deep inside the buttocks. It connects the lower spine to the upper thighbone and runs directly over the sciatic nerve. If this muscle goes into spasm, it can put pressure on the sciatic nerve, triggering symptoms of sciatica. Piriformis syndrome is more common in women.t connects the lower spine to the upper thighbone and runs directly over the sciatic nerve. If this muscle goes into spasm, it can put pressure on the sciatic nerve, triggering symptoms of sciatica. Piriformis syndrome is more common in women.
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).