The Largest Nerve in the Body That is Formed from L4-S3

Question

The largest nerve in the body that is formed from L4-S3 is the ________.
A) tibial nerve
B) pudendal nerve
C) sciatic nerve
D) fibular nerve
E) superior gluteal nerve

Accepted Answer

The sciatic nerve is the largest nerve in the body, formed from the nerve roots of L4-S3 in the lower back. It runs down the back of each leg and divides into the tibial and fibular nerves at the knee. The pudendal nerve arises from S2-S4 and serves the pelvic floor muscles and external genitalia. The superior gluteal nerve arises from L4-S1 and supplies the gluteus medius, minimus, and tensor fasciae latae muscles.