| 1
.
| Body of vertebra L. IV (pointer also indicates anterior longitudinal ligament) |
| 2
.
| Transverse process vertebra L. IV |
| 3
.
| Iliolumbar ligament |
| 4
.
| Iliac crest |
| 5
.
| Ventral sacroiliac ligament (lower pointer also indicates position of sacroiliac joint) |
| 6
.
| Ala of ilium |
| 7
.
| Lumbosacral trunk |
| 8
.
| Coccygeus muscle |
| 9
.
| Iliococcygeus muscle |
| 10
.
| Pubococcygeus muscle |
| 11
.
| Puborectalis muscle (9-11 make up the levator ani muscle) |
| 12
.
| Tendinous arch of levator ani muscle |
| 13
.
| Joint capsule of coccyx |
| 14
.
| Obturator fascia (obturator internus muscle visible through fascia) |
| 15
.
| Rectum (cut across at perineal flexure) |
| 16
.
| Prostate |
| 17
.
| Puboprostatic muscle |
| 18
.
| Urethra |
| 19
.
| Lateral part of sacrum |
| 20
.
| Nutritive foramen |
| 21
.
| Piriform muscle (cut off) |
| 22
.
| Upper pointer: Intervertebral disc L. V - S. I Lower pointer: Coccyx |
| 23
.
| Greater sciatic foramen |
| 24
.
| Superior fascia of pelvic diaphragm (Levator ani muscle visible beneath fascia) |
| 25
.
| Upper pointer: Linea terminalis Lower pointer: Line of attachment of fascia of psoas major muscle |
| 26
.
| Upper pointer: Obturator fascia Lower pointer: Obturator canal |
| 27
.
| Inguinal ligament |
| 28
.
| Pectineal ligament |
| 29
.
| Lacunar ligament |
| 30
.
| Body of pubic bone |
| 31
.
| Pubic symphysis |
