1 – Anatomy of the femoral nerve

The lumbar part of the lumbosacral plexus emerges from five spinal nerves: T12, L1, L2, L3 and L4

It gives origin to three important nerves in lower limb innervation: The femoral, the obturator and the lateral femoral cutaneous nerves

The most important lumbar plexus nerve concerning basic peripheral nerve blockade is the femoral nerve

It originates from the L2, L3, and L4 spinal nerves of the lumbar plexus