The femoral nerve emerges from beneath the inguinal ligament about six millimeters to the lateral side of the common femoral artery. In the depression between the psoas and iliacus muscles, is the femoral nerve. It is the largest branch of the lumbar plexus and is covered by the iliac fascia. It arises from the second, third, and fourth lumbar nerves and runs through the psoas muscle. In the groove between the psoas and iliacus muscles, it divides into two portions: an anterior and a posterior portion. The muscular branches of the pectineus and sartorius arise from the anterior portion of the nerve. The intermediate cutaneous and medial cutaneous nerves also arise from this nerve.

L2 through L4 posterior divisions

Anterior compartment of thigh (quadriceps femoris, sartorius, pectineus)

Extend knee

Lumbar nerve plexus

Medial femoral cutaneous nerve
Intermediate femoral cutaneous nerve
Pectineus branch of femoral nerve
Nerve to sartorius (1)
Nerve to sartorius (2)
Saphenous nerve
Rectus femoris branch of femoral nerve
Vastus lateralis branch of femoral nerve
Vastus medialis branch of femoral nerve
Vastus intermedius branch of femoral nerve (1)
Vastus intermedius branch of femoral nerve (2)
Vastus intermedius branch of femoral nerve (n)
Nerve to femoral artery
Nerve to articularis genus
Nerve to iliacus (1)
Nerve to iliacus (2)
Nerve to iliacus (n)

Del nervio femoral

Nervus femoralis

Nerf fémoral