1
.
| Left pointer: Prostate Right pointer: Membranous part of urethra |
2
.
| Prostatic fascia |
3
.
| Superior fascia of urogenital diaphragm (continuous medially as a thin, semitransparent layer across puborectalis part of levator ani muscle) |
4
.
| Puborectalis muscle |
5
.
| Obturator fascia |
6
.
| Obturator internus muscle |
7
.
| Levator ani muscle |
8
.
| Sacrotuberous ligament |
9
.
| Anococcygeal ligament |
10
.
| Coccyx |
11
.
| Dorsal vein of the penis (cut off) |
12
.
| Transverse perineal ligament |
13
.
| Cut margin of superior fascia of urogenital diaphragm (fascia removed medially) |
14
.
| Inferior fascia of pelvic diaphragm (pointer indicates area of fusion with superior fascia of urogenital diaphragm) |
15
.
| Obturator fascia |
16
.
| Ischial tuberosity |
17
.
| Area occupied by fibers of rectourethralis muscle (not clearly defined) |
18
.
| Anus |
19
.
| External anal sphincter muscle |