Lateral Femoral Cutaneous

The lateral cutaneous nerve of the thigh (also called the lateral femoral cutaneous nerve) is a cutaneous nerve of the thigh. It originates from the dorsal divisions of the second and third lumbar nerves from the lumbar plexus. It passes under the inguinal ligament to reach the thigh. It supplies sensation to the skin on the lateral part of the thigh by an anterior branch and a posterior branch.

Since the lumbar plexus and sacral plexus are interconnected, they are sometimes referred to as the lumbosacral plexus. the intercostal nerves that give rami to the chest and to the upper parts of the abdominal wall efferent motor innervation and to the pleura and peritoneum afferent sensory innervation are the only ones that do not originate from a plexus. the ventral rami of l1-l5 spinal nerves with a contribution of t12 form lumbar plexus. this plexus lies within the psoas major muscle. nervi of the plexus serve the skin and the muscles of the lower abdominal wall, the thigh and external genitals. the largest nerve of the plexus is the femoral nerve. it supplies anterior muscles of the thigh and a part of skin distal to the inguinal ligament.