Back to Top. Empiricism is the theory that the origin of all knowledge is sense experience. It emphasizes the role of experience and evidence, especially sensory perception, in the formation of ideas, and argues that the only knowledge humans can have is a posteriori (i.e. based on experience).
Answer: The sciatic nerve divides into the tibial and common peroneal nerves at the lower third of the thigh. When an injection is done in the popliteal fossa space, the provider should indicate what structure he or she is trying to block.
Where is sciatic nerve pain felt? Sciatic nerve pain can be felt anywhere along the path of the sciatic nerve, which spans from the lower spine through the hips, buttocks, legs and feet. Because this important nerve transmits motor and sensory signals throughout the lower body, interference with the sciatic nerve can be debilitating.