Anatomy Atlases(tm) : A digital library of anatomy information

Home | About | FAQ | Reviews | Search

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 6.5

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 6.5

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Ileum
2. Radix mesentery,
3. Inferior epigastric a. and v.
4. Lateral umbilical ligament
5. Ileocolic vessels
6. Cecum
7. Peritoneal space
8. Insertion of lateral wall mm. onto anterior iliac spine
9. Anterior superior iliac spine
10. External iliac a. and v. (arising from common iliac v.)
11. Genitofemoral nerve
12. Os ilium
13. Femoral nerve
14. Ureter
15. Obturator nerve

16. Internal iliac a. and v. (arising from common iliac v.)
17. Ventral sacroiliac ligament
18. Superficial fascia (panniculus adiposus)
19. Superior gluteal v. and lumbosacral trunk
20. Sacroiliac joint
21. Superior gluteal vessels
22. Inferior gluteal a. and v. and sacrum
23. Second sacral nerve
24. Posterior sacroiliac ligament
25. Third sacral nerve
26. Multifidus m.
27. Anterior longitudinal ligament and spinal nerve roots (cauda equina)
28. Supraspinal ligament

29. Thecal sac
30. Multifidus m.
31. Third sacral nerve
32. Sacral bone articulation
33. Second sacral nerve
34. First sacral nerve
35. Superior rectal blood vessels
36. Gluteus maximus m.
37. Lumbosacral trunk
38. Ventral sacroiliac ligament
39. Gluteus medius m.
40. Internal iliac a. and v.
41. Gluteus minimus m.

42. External iliac a. and v.
43. Femoral nerve
44. Psoas major m.
45. Ureter
46. Anterior superior iliac spine
47. Deep circumflex iliac a. and v. and genitofemoral nerve, genital br.
48. Femoral br. of genitofemoral nerve
49. Transverse abdominis m.
50. Internal abdominal oblique m.
51. Sigmoid colon
52. Ileocolic blood vessels
53. Semilunar line
54. Lateral umbilical ligament
55. Colon
56. Peritoneal cavity and urinal, bladder, dome (first appearance)
57. Rectus abdominis m.
58. Median umbilical ligament

This section is through the sacrum at the level of the second anterior sacral foramen containing the second sacral nerve (23).

The bifurcation of the left common iliac into internal (40) and external (42) iliac veins is complete in this cut but the bifurcation will not be completed on the right side (10,16) until the next cut. The inferior gluteal artery and vein (22) are seen within the substance of the gluteus maximus muscle. The superior gluteal vein (19,21) is seen between gluteus medius (39) and minimus (41) muscles. The superior rectal blood vessels (35) are seen in this section.

Note that the transversus abdominis (8,49) arises in part from the iliac fascia or aponeurosis of the iliacus muscle, and the internal abdominal oblique muscles arise in part from the same fascia and from the anterior superior iliac spine (9, 46).

The first (34), second (23,33), and third (25,31) sacral nerves are found in this cut. The third sacral nerve (25,31) lies in the sacral canal. The femoral (48) and genital (47) branches of the genitofemoral nerve are found on the anterior surface of the psoas major muscle.

The dome of the urinary bladder (56) appears for the first time. The radix mesentery (2) is defined as the root of the mesentery or the origin of the mesentery of the jejunum and ileum from the posterior (dorsal) parietal peritoneum.

Next Page | Previous Page | Section Top | Title Page

Home | About Us | FAQ | Reviews | Contact Us | Search

Anatomy Atlases is curated by Michael P. D'Alessandro, M.D. and Ronald A. Bergman, Ph.D.

Please send us comments by filling out our Comment Form.

All contents copyright © 1995-2017 the Author(s) and Michael P. D'Alessandro, M.D. All rights reserved.

"Anatomy Atlases", the Anatomy Atlases logo, and "A digital library of anatomy information" are all Trademarks of Michael P. D'Alessandro, M.D.

Anatomy Atlases is funded in whole by Michael P. D'Alessandro, M.D. Advertising is not accepted.

Your personal information remains confidential and is not sold, leased, or given to any third party be they reliable or not.

The information contained in Anatomy Atlases is not a substitute for the medical care and advice of your physician. There may be variations in treatment that your physician may recommend based on individual facts and circumstances.