Lumbar Plexus Anatomy
Schema Subcostal nerve (T12), White and gray rami communicantes, Iliohypogastric
nerve, Ilioinguinal nerve, Genitofemoral nerve, Lateral femoral cutaneous nerve,
Gray rami communicantes, Muscular branches to psoas major and iliacus muscles, Femoral
nerve, Accessory obturator nerve (inconstant), Obturator nerve, Lumbosacral
trunk, Respiratory diaphragm (cut), Subcostal nerve (T12), Sympathetic
trunk, Iliohypogastric nerve,
Ilioinguinal nerve, Genitofemoral nerve (cut),
Lateral femoral cutaneous nerve, Femoral nerve, Obturator nerve, Psoas major
muscle (cut), Lumbosacral trunks, Inguinal ligament (Poupart’s), Anterior
division, Posterior division, White and gray rami communicantes, Subcostal
nerve (T12), Iliohypogastric nerve (T12, L1), Ilioinguinal nerve (L1), Transversus
abdominis muscle, Quadratus lumborum muscle, Psoas major muscle, Gray rami
communicantes, Genitofemoral nerve (L1, 2), Iliacus muscle, Lateral femoral cutaneous
nerve (L2, 3), Femoral nerve (L2–4), Genital branch and, Femoral branch of genitofemoral
nerve, Obturator nerve (L2–4), Anterior rami of lumbar plexus spinal nerves.
