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

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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

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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