| 1
.
| Acetabulum |
| 2
.
| Body of ischium (dissected) |
| 3
.
| Piriform muscle (cut off) |
| 4
.
| Sciatic nerve (note emergence of tibial portion through piriform muscle) |
| 5
.
| Tendon of obturator internus muscle (elevated from lesser sciatic notch and cut off) |
| 6
.
| Obturator internus muscle (exposed by removal of obturator membrane and parts of ischium and pubic bone) |
| 7
.
| Ischial tuberosity |
| 8
.
| Muscular branch of obturator artery to obturator internus |
| 9
.
| Ramus of ischium |
| 10
.
| External anal sphincter muscle (muscle fibers indistinct) |
| 11
.
| Posterior labial branch internal pudendal artery |
| 12
.
| Posterior labial nerve |
| 13
.
| Posterior labial vein (plexiform) |
| 14
.
| Major vestibular gland |
| 15
.
| Obturator nerve, artery, and vein (emerging from pelvis through obturator canal) |
| 16
.
| Femoral artery and vein (surrounded by femoral sheath) |
| 17
.
| Inguinal ligament |
| 18
.
| Area of origin of pectineus muscle from superior pubic ramus |
| 19
.
| Pubic tubercle |
| 20
.
| Body of pubic bone (partially cut away) |
| 21
.
| Pubic symphysis |
| 22
.
| suspensory ligament of clitoris (note continuation of tendons of ischiocavernosus and bulbospongiosus muscles into this area) |
| 23
.
| Ischiocavernosus muscle |
| 24
.
| Deep perineal fascia (partially removed) |
| 25
.
| bulbospongiosus muscle |
| 26
.
| Labium majus |
| 27
.
| Vestibular bulb |
