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

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

Plate 6.19

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 6.19

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Left common iliac a.
2. Right common iliac v., joining inferior vena cava
3. Ureter
4. Vermiform appendix
5. Ascending colon
6. Iliacus m.

7. Gluteus medius m.
8. Vertebra S1
9. Interosseous sacroiliac ligament
10. Zygapophyseal joint
11. Thoracolumber fascia

12. Supraspinous ligament
13. Multifidus m.
14. Nerve roots in theca
15. Longissimus m.
16. Iliocostalis m.
17. Fourth lumbar nerve and intervertebral foramen
18. Ilium
19. Second and third lumbar nerves

20. Psoas major m.
21. Transversus abdominis m.
22. Internal oblique m.
23. External oblique m.
24. Ileum
25. Ureter
26. Mesentery ileum
27. Common iliac a.
28. First sacral vertebra, body and anterior longitudinal ligament at sacral promontory
29. Inferior vena cava
30. Rectus abdominis m.
31. Umbilicus

This section passes through the umbilicus (31), ilium (18), first sacral vertebra (8), appendix (4), and the junction of the right common iliac vein with the inferior vena cave (2).

The ascending colon (5) is cut, as are coils of ileum (24).

The rectus abdominis (30), the three abdominal wall muscles (21, 22, 23), psoas major (20), iliacus (6), gluteus medius (7), and the erector spinae muscles (13, 15, 16) are seen.

The second, third, and fourth lumbar nerves are identified.

The ureters (3, 25) are positioned beneath the peritoneum on either side of the vertebral body (28).

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