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Lower Limb Nerves

Segmental Innervation of the Lower Limb

MuscleNerveNerve Root
Quadratus Lumborum Lumbar Plexus L1, 2, 3
Psoas minor Lumbar Plexus L1,2
Psoas major Lumbar Plexus L1,2,3
Iliacus Femoral L2,3
Pectineus Femoral L2,3,4
Rectus femoris Femoral L2,3,4
Vastus lateralis Femoral L2,3,4
Vastus medialis Femoral L2,3,4
Vastus intermedius Femoral L2,3,4
Gracilis Obturator L2,3
Adductor Longus Obturator L2,3,4
Adductor Brevis Obturator L2,3,4
Adductor Magnus Obturator L2,3,4
Obturator Externus Obturator L3,4
Gluteus Medius Superior Gluteal L4,5; S1
Gluteus Minimus Superior Gluteal L4,5; S1
Tensor Fascia Latae Superior Gluteal L4,5; S1
Gluteus Maximus Inferior Gluteal L5; S1,2
Piriformis Sacral Plexus L5; S1,2
Superior Gemellus Sacral Plexus L5; S1,2
Obturator Internus Sacral Plexus L5; S1,2
Inferior Gemullus Sacral Plexus L4,5; S1
Quadratus femoris Sacral Plexus L4,5; S1
Semimembranosus Sciatic (tibial division) L5; S1,2
Semitendinosus Sciatic (tibial division) L5; S1,2
Biceps Femoris (long head) Sciatic (tibial division) L5; S1,2
Biceps Femoris (short head) Sciatic (common peroneal) L5; S1,2
Tibialis Anterior Deep Peroneal L4,5
Extensor hallucis longus Deep Peroneal L5; S1
Extensor digitorum longus Deep Peroneal L5; S1
Peroneus tertius Deep Peroneal L5;S1
Extensor digitorum brevis Deep Peroneal L5; S1
Peroneus longus Superficial Peroneal L5; S1,2
Peroneus brevis Superficial Peroneal L5; S1,2
Gastrocnemius Tibial S1,2
Plantaris Tibial L5; S1
Popliteus Tibial L5; S1
Tibialis Posterior Tibial L4,5
Flexor Digitorum Longus Tibial S1,2
Flexor Hallucis Brevis Medial plantar L5; S1
Soleus Tibial S1,2
Flexor Hallucis Longus Tibial S1,2
Abductor Hallucis Medial Plantar L5; S1
Flexor Digitorum Brevis Medial Plantar L5; S1
Lumbricals I Medial Plantar L5; S1
Quadratus Plantae Lateral Plantar S2,3
Abductor Digiti Minimi Lateral Plantar S2,3
Lumbricals II, III, IV Lateral Plantar S2,3
Adductor Hallucis Lateral Plantar S2,3
Plantar Interossei Lateral Plantar S2,3
Dorsal Interossei Lateral Plantar S2,3
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