Nerve to quadratus femoris
Plexus: Lumbosacral
Roots:
L4
L5
S1
Origin: Anterior divisions of the L4, L5, and S1 nerve roots
Motor innervation:
Quadratus femoris
Roots:
L4
L5
S1
Inferior gemellus
Roots:
L4
L5
S1