L4L5S1Sciatic nerveTo obturator internus muscleTo quadratus femoris andinferior gemellus musclesPudendal nervePelvic splanchnic nervesPelvic splanchnicnervePosterior femoral cutaneous nervePerforating cutaneous nerveInferior glutealSuperior glutealLumbosacral trunkCommon fibular partTibial partS2S3S4S5CoTo piriformis muscleAnococcygeal nervesVentral divisionsDorsal divisionsAnterior ramiCoccygeal plexusTo levator ani, coccygeus, and external anal sphincter musclesSacral plexus