I — Anococcygeal body; Anococcygeal ligament; 2 — Levator ani; 3 — Sacrospinous ligament; 4 — Ischial spine; 5 — Ischial tuberosity; 6 — Acetabulum; 7 — Anterior superior iliac spine; 8 — Anterior inferior iliac spine; 9 — Ramus; 10 — Deep transverse perineal muscle;
II — Superior pubic ramus; 12 — Glans of clitoris; 13 — External urethral orifice; External urinary meatus; 14 — Vestibule; 15 — Bulbospongiosus; 16 — Ischiocavernosus; 17 — Superficial transverse perineal muscle; 18 — Obturator internus; 19 — Piriformis; 20 — Perineal body;
21 — Sacrotuberous ligament; 22 — External anal sphincter; 23 — Coccyx [coccygeal vertebrae CoI-CoIV]
