Final answer:
The femoral nerve is a major nerve of the lumbar plexus, which arises from the lumbar spinal nerves.
Step-by-step explanation:
A major nerve of the lumbar plexus is the femoral nerve. The lumbar plexus itself arises from all the lumbar spinal nerves and is responsible for enervating the pelvic region and the anterior leg. The femoral nerve is particularly noteworthy as it branches into the saphenous nerve, extending through the anterior lower leg.
The major nerve of the lumbar plexus is the femoral nerve. The lumbar plexus arises from the lumbar spinal nerves and gives rise to nerves that innervate the pelvic region and the anterior leg. The femoral nerve is one of the major nerves from this plexus and gives rise to the saphenous nerve, which extends through the anterior lower leg.