Muscular innervation
of medial thigh
Muscular innervation
of anterior thigh
Obturator nerve
L2
L3
L4
L2
L3
L4
Femoral nerve
Rectus femoris
Sartorius
Vastus
lateralis
Obturator
externus
Adductor brevis
Adductor
longus
Gracilis
Adductor
magnus
Vastus
intermedius
Vastus
medialis
Pectineus
Iliacus
Cutaneous innervation
Lateral
femoral
cutaneous
nerve
Obturator
nerve
Femoral
nerve
Posterior view
Anterior view
Figure G.2
Each lower limb is innervated by nerves arising from the
lumbar and sacral plexuses, together called the lumbosacral plexus.
The nerves from the
lumbar plexus
innervate the muscles in the anterior and
medial compartments of the thigh, and supply cutaneous innervation to anterior
and medial portions of the thigh and leg.
A-16
Appendix G
Innervation of the Lower Limb
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