Lumbosacral Plexus

· Superior Gluteal (L4-S1) to gluteus medius and minimus and tensor fascia lata

· Inferior Gluteal (L5-S2) to gluteus maximus

· Femoral (L2-4) to iliacus, psoas, quadriceps femoris, sartorius, anterior femoral cutaneous nerve, saphenous nerve

· Obturator (L2-4) to adductor brevis, adductor longus, adductor magnus (with sciatic nerve), gracilis, obturator externus

· Sciatic (L4-S3) to semimembranosus, semitendinosus, biceps femoris, adductor magnus (with obturator nerve), tibial nerve, common peroneal nerve

o Tibial to gastrocnemius, soleus, tibialis posterior, flexor hallucis longus, flexor digitorum longus, medial plantar nerve (to abductor hallucis, flexor digitorum brevis, and flexor hallucis brevis), lateral plantar nerve (to abductor digiti minimi, adductor hallucis, interosseous muscles)

o Common Peroneal – divides:

§ Superficial Peroneal to peroneus longus and brevis

§ Deep Peroneal to tibialis anterior, extensor digitorum longus, extensor hallucis longus, peroneus tertius, extensor digitorum brevis

· Lateral Femoral Cutaneous (L2-3)

· Pudendal (S2-4) to external anal and urethral sphincters

· Pelvic (S2-4) to bowel, bladder, sex organs (parasympathetics)