The _______ Nerve is the Largest Nerve Arising from the Lumbar

Question

The _______ nerve is the largest nerve arising from the lumbar plexus.
A) ulnar
B) phrenic
C) femoral
D) sciatic

Accepted Answer

The femoral nerve is the largest nerve arising from the lumbar plexus, providing innervation to the muscles of the anterior thigh and sensory innervation to the skin of the anterior thigh and medial leg. The ulnar nerve arises from the brachial plexus, providing innervation to the muscles of the forearm and hand and sensory innervation to the skin of the medial hand. The phrenic nerve arises from the cervical plexus, providing innervation to the diaphragm. The sciatic nerve arises from the sacral plexus, providing innervation to the muscles of the posterior thigh and leg and sensory innervation to the skin of the posterior thigh, leg, and foot.