The femoral nerve is a major nerve in the human body. It originates from the lumbar spine and travels down the leg. The femoral nerve provides motor innervation to the muscles of the thigh and sensory innervation to the skin of the anterior thigh and medial leg. It plays a crucial role in controlling movements and transmitting sensory information from the lower extremities. Damage or dysfunction of the femoral nerve can lead to weakness or numbness in the thigh and leg, impacting mobility and sensation.