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LS Plexus
Nerves and Contributions
| Nerves | Contributions and Divisions |
|---|---|
| Subcostal | T12 (posterior division) |
| Iliohypogastric | T12, L1 (posterior division) |
| Ilioinguinal | L1 (posterior division) |
| Genitofemoral | L1,L2 (posterior division) |
| Lateral femoral cutaneous | L2,L3 (posterior division) |
| Femoral | L2-L4 (posterior division) |
| Obturator | L2-L4 (anterior division) |
| Lumbosacral trunk | L4,L5 |
| Superior gluteal nerve | L4-S1 (posterior division) |
| Inferior gluteal nerve | L5-S2 (posterior division) |
| Nerve to quadratus femoris and inferior gemellus | L4-S1 (anterior division) |
| Nerve to obturator internus and superior gemellus | L5-S2 (anterior division) |
| Nerve to piriformis | S1,S2 (posterior division) |
| Posterior femoral cutaneous | S1-S3 (mixed) |
| Sciatic | L4-S3 (mixed) |
| Sciatic:Tibial component | L4-S3 (anterior division) |
| Sciatic: Common peroneal | L4-S2 (posterior division) |
| Sacral Plexus | L4-S4 |
| Lumbar Plexus | L1-L4 (T12) |