| A | B |
|---|
| Ilioinguinal n. | (L1) |
| Iliohypogastric n. | (L1) |
| Genitofemoral n. | (L1-L2) |
| Lateral cutaneous nerve of the thigh | (L2-L3) |
| Femoral n. | (L2-L4) |
| Accessory obturator nerve | (L3, L4) |
| Obturator nerve | (L2-L4) |
| Lumbosacral trunk | (L4,L5) |
| •Sciatic nerve | (L4-S1) |
| •Pudendal nerve | (S2-S4) |
| •Superior gluteal nerve | (L4 -S1) |
| •Inferior gluteal nerve | (L5-S2) |
| anterior thigh supplying the flexors of the hip & extensors of the knee | Femoral Nerve: Passes deep to the inguinal ligament to the |
| NO pelvic structures are | supplied by the obturator nerve |
| if injured during surgery (removal of cancerous lymph nodes from lateral pelvic wall) | obdurator nerve causes painful spasms of thigh adductor ms. |
| Femoral Nerve: | Innervates muscles of the anterior compartment of the thigh |
| Largest branch of the lumbar plexus (L2-L4) | Femoral Nerve: |
| innervated by the femoral nerve | psoas and iliacus muscles |
| the femoral nerve travels … | posteriorlaterally through the pelvis |
| Innervates muscles of the medial compartment of the thigh | obdurator nerve |
| Saphenous Nerve | Terminal cutaneous branch of the femoral n. |
| Descends through the femoral triangle, lateral to the femoral sheath | Saphenous Nerve |
