Template:Lumbar Plexus
From WikiMSK
| Nerve | Segment | Motor Supply | Action | Sensory Supply |
|---|---|---|---|---|
| Iliohypogastric nerve | T12/L1 | Transversus abdominis and internal oblique muscles | N/A | Lower abdomen |
| Ilioinguinal nerve | L1 | Inferior abdominal muscles | N/A | Inguinal region, small area of media thigh, and upper scrotum/labia |
| Genitofemoral nerve | L1, L2 | Cremasteric muscle in men | N/A | Skin of femoral triangle. Lower scrotum/labia |
| Lateral femoral cutaneous nerve | L2,L3 | N/A | N/A | Lateral thigh |
| Obturator nerve | L2, L3, L4 anterior rami | Adductor magnus (anterior half), adductor longus, adductor brevis, gracilis, obturator externus | Hip adduction | Medial thigh |
| Femoral nerve | L2, L3, L4 anterior rami, posterior divisions | Quadriceps femoris, sartorius, pectineus, iliacus | Knee extension | Medial lower leg (through saphenous nerve |
| Lumbosacral trunk / furcal nerve | L4-5, mainly L5 | Ankle dorsiflexion, eversion, inversion | L5 sensory loss |
