Root value for nerve to Quadratus femoris ?: (A) L1,L2,L3, (B) L2,L3,L4, (C) L4,L5 ,S1, (D) S1, S2,S3
Answer is C. Ans. C. L4,L5 ,S1The nerve to quadratus femoris arises from the anteriordivisions of the sacral plexus.It is formed from the L4-S1 nerve roots and exits the pelvis the greater sciaticforamen inferior to the piriformis muscle and deep to thesciatic nerve.