Anatomy Atlases: Atlas of Human Anatomy in Cross Section: 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 6.21

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. Peritoneal cavity 2. Internal iliac a. 3. Right ureter 4. External iliac a. 5. Ovarian a. and v. 6. Ascending colon 7. Anterior superior iliac spine 8. Internal iliac v. 9. Psoas major m. 10. Gluteus minimus m. 11. Obturator nerve	12. Nerve to iliacus m. 13. Gluteus medius m. 14. Fifth lumbar nerve 15. Sacroiliac joint 16. Gluteus maximus m. 17. Interosseous sacroiliac ligament 18. Thoracolumber fascia 19. First sacral disk, fibrocartilage	20. Theca 21. Multifidus and iliocostalis lumborum mm. 22. Second sacral nerve 23. Sacrum 24. First sacral nerve 25. Ilium 26. Gluteus maximus m. 27. Gluteus medius m. 28. Sacroiliac joint 29. Fifth lumbar nerve 30. Nerve to iliacus m. 31. Iliacus m. 32. Fourth lumbar nerve 33. Obturator nerve	34. Femoral nerve 35. Ilium 36. Iliohypogastric and ilioinguinal nerves 37. Descending colon 38. Psoas moodier m. 39. Common iliac v. 40. Aponeuroses and abdominal oblique mm. 41. Common iliac a. 42. External iliac v. 43. Ovarian a. and v. and left ureter 44. Ileum 45. Ileum 46. Rectus abdominis m. 47. Mesentery, ileum 48. Linea alba

This section passes through the rectus abdominis muscles (46), ileum (44, 45), ascending (6) and descending (37) colon, sacroiliac joint (15, 28), and sacrum (23).

The following nerves can be identified: iliohypogastric and ilioinguinal (36), femoral (34), obturator (11, 33), fourth lumbar (32), nerve to iliacus (12, 30), first sacral (24), second sacral (22), and fifth lumbar (14). The theca (20) is still open at this level.

The left ureter crosses the common iliac artery (39), and the right ureter (3) crosses the common iliac artery at its point of bifurcation into external (4) and internal iliac (2) branches.

The anterior superior iliac spine of the ilium (7) is seen at this level.

The ureters (3, 43) lie medial to the ovarian arteries and veins (5, 43).

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