Fig. 5.16 Pelvic splanchnic nerves from spinal levels S2 to S4 control erection.
Hypogastric nerveInferior hypogastric plexusAttachment of pelvic floor(levator ani and coccygeus)Pelvic splanchnic nerves(from S2 to S4)Urogenital triangleAnal triangleProstateNerves to erectile tissue
Fig. 5.17 Perineal body.