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.
Sciatica is pain, tingling, or numbness produced by an irritation of the sciatic nerve. Sciatica is a pain in the leg due to irritation of the sciatic nerve. Sciatica most commonly occurs when a branch of the sciatic nerve is compressed at the base of the spine. Carpal tunnel syndrome occurs when tendons in the wrist become inflamed after being aggravated.