<prompt> Which is the nerve supplying gamellus inferior muscle?Nerve to obturator internusNerve to obturator externusNerve to quadratus femorisVentral rami to S1 and S2  <response>: Ans. C Nerve to quadratus femorisRef: BDC, 6th ed. vol. II pg. 69; Grays Anatomy 40th ed. pg. 1384 Quadratus femoris and gamellus inferior muscle are arranged together. Nerve which is bifurcating to supply quadratus femoris muscle, supplies gamellus inferior muscle as wellExtra Mile Nerve supply of piriformis: Ventral rami to S1 and S2 Nerve supply of obturator externus muscle: Posterior division of obturator nerve 