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Anatomy Atlases: Atlas of Human Anatomy in Cross Section: Section 6: Pelvis, Perineum, Hip, and Upper Thigh

Atlas of Human Anatomy in Cross Section: Section 6. Pelvis, Perineum, Hip, and Upper Thigh

Plate 6.22

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Jean J. Jew, M.D., and Paul C. Reimann, B.S.
Peer Review Status: Externally Peer Reviewed

Plate 6.22

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Peritoneal cavity
2. Mesentery, ileum
3. External iliac a.
4. Anterior superior iliac spine
5. Ascending colon
6. Gluteus minimus m.
7. Ovarian a., v., and nerve and right ureter
8. Femoral nerve
9. Iliopsoas m.
10. Internal iliac a.
11. Gluteus medius m.
12. Internal iliac v.

13. Anterior sacroiliac ligament
14. First sacral nerve
15 Gluteus maximus m.
16. Sacroiliac joint
17. Second sacral nerve
18. Posterior sacroiliac ligament
19. Sigmoid colon
20. Third sacral nerve
21. Thoracolumber fascia

22. Second sacral vertebra spinous process
23. Multifidus and iliocostalis mm.
24. Interosseous sacroiliac ligament
25. Sacrum, lateral portion
26. Dorsal sacroiliac ligament
27. Gluteus maximus m.
28. Sacroiliac joint
29. Gluteus medius m.
30. Iliacus m.

31. Gluteus minimus m.
32. Lumbosacral trunk
33. Descending colon and internal iliac v.
34. Ilium
35. Ovarian a., v., and nerve and left ureter
36. External iliac a.
37. External iliac v.
38. Inferior epigastric a.
39. Rectus abdominis m.
40. Linea alba

This section passes through the linea alba (40) and rectus abdominis muscles (39), ascending (5), descending (33) and sigmoid (19) colon, sacroiliac joint (16, 28), and the second sacral vertebra (22).

The ovarian artery, vein, and nerve are still positioned anterior to the ureters (7, 35). This vascular and nervous unit is contained in a band or fold of the peritoneum that is called the suspensory ligament of the ovary. It may be traced craniad for some distance beyond the pelvic brim.

The gluteus medius (11, 29) on the outer surface of the iliac ala is now joined by the gluteus minimus (6, 31), which takes the deep position (third layer) from the inferoventral outer surface of the ala of the ilium. On the internal surface of the ala of the ilium the iliopsoas muscle (9) can be seen bilaterally.

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