Frontal section of pelvis, section of rectum and anal canal.

Illustration of the frontal section of the pelvis, rectum at level of anal canal.

Term name Layer
1 Ischio-anal fossa Layer 1
2 Pelvic diaphragm; pelvic floor Layer 1
3 Pubococcygeus Layer 1
4 Iliococcygeus Layer 1
5 Peritoneum Layer 1
6 Levator ani Layer 1
7 Obturator internus Layer 1
8 Inferior fascia of pelvic diaphragm Layer 1
9 Superior fascia of pelvic diaphragm Layer 1
10 Tendinous arch of pelvic fascia Layer 1
11 Tendinous arch of pelvic fascia Layer 1
12 Pudendal nerve Layer 1
13 Internal pudendal vein Layer 1
14 Internal pudendal artery Layer 1
15 Sigmoid colon Layer 1
16 Ureter Layer 1
17 Superior fascia of urogenital diaphragm Layer 1