1
.
| Superior gluteal artery |
2
.
| Sciatic nerve |
3
.
| Inferior gluteal artery |
4
.
| Piriform muscle (cut across) |
5
.
| Inferior gluteal nerve |
6
.
| Middle cluneal nerve (from dorsal branch of 2nd sacral nerve) |
7
.
| Coccyx (periosteum removed) |
8
.
| Sacrospinous ligament (coccygeus muscle fused with ligament, the latter rather indistinct) |
9
.
| Ischial spine |
10
.
| Coccyx (tip) |
11
.
| Levator ani muscle (pointer on pubococcygeal part of muscle) |
12
.
| Anococcygeal ligament |
13
.
| Deep part |
14
.
| Superficial part |
15
.
| Subcutaneous part (1315 refer to the external anal sphincter) |
16
.
| Anus |
17
.
| Longitudinal muscle of anal canal |
18
.
| Superior gluteal nerve |
19
.
| Left pointer: Lymph node Right pointer: Margin of greater sciatic notch |
20
.
| Ala of ilium |
21
.
| Origin of rectus femoris muscle |
22
.
| Acetabulum |
23
.
| Obturator nerve |
24
.
| Tendinous arch of levator ani muscle (indistinct, see discussion with 158-7) |
25
.
| Levator ani muscle (pointer on puborectalis muscle) |
26
.
| Body of pubic bone (partially removed) |
27
.
| Obturator fascia |
28
.
| Body of clitoris |
29
.
| Vestibular bulb |
30
.
| Major vestibular gland |
31
.
| Central tendon of perineum |