Lumbar and Sacral Plexus Nerves and Nerve Roots

Given the nerves of the lower extremity, name their associated nerve roots. Source: Gray's Anatomy for Students, 4th ed.

Enter answers in the format L#-L# / L#-S# / S#-S#

Please note that the tibial nerve and common peroneal nerve do not arise directly from the sacral plexus, but are divisions of the sciatic nerve.

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Last updated: August 21, 2020

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Lumbar Plexus	Nerve Roots
Iliohypogastric	L1
Ilioinguinal	L1
Genitofemoral	L1-L2
Lateral Cutaneous Nerve of the Thigh	L2-L3
Obturator	L2-L4
Femoral	L2-L4

Sacral Plexus	Nerve Roots
Superior Gluteal	L4-S1
Inferior Gluteal	L5-S2
Nerve to Piriformis	S1-S2
Nerve to Quadratus Femoris	L4-S1
Nerve to Obturator Internus	L5-S2
Pudendal	S2-S4
Sciatic	L4-S3
Tibial Nerve	L4-S3
Common Peroneal (Fibular) Nerve	L4-S2
Posterior Cutaneous Nerve of the Thigh	S1-S3