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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 6.9

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 6.9

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Linea alba
2. Rectus (abdominis) sheath
3. Spermatic cord
4. Internal abdominal oblique m.
5. Superficial epigastric a.
6. External iliac Iymph node
7. Genitofemoral nerve brs.
8. Iliopsoas m. and femoral nerve
9. Iliopectineal bursa
10. Os ilium
11. Straight and reflected tendons m. rectus femoris
12. Tensor fascia lata m.
13. Iliofemoral ligament
14. Femoral head

15. Ligamentum teres femoris
16. Acetabulum
17. Tendon m. gluteus medius
18. Tendon m. piriformis
19. Obturator nerve and blood vessels
20. Obturator fascia
21. Obturator internus m.
22. Lumbosacral nerve trunk
23. Internal pudendal a. and v.
24. Inferior gluteal a. and v.
25. Vesical plexus of w.
26. Pelvic fascia
27. Vas deferens
28. Urinary bladder
29. Rectum
30. Superior rectal a. and v.

31. Vertebra, S5
32. Retrovesical pouch
33. Sacral horn (cornu) and lateral sacral process
34. Vas deferens
35. Middle rectal a. and v.
36. Second sacral nerve
37. Inferior vesical a. and pudendal nerve
38. First sacral nerve
39. Inferior gluteal a. and v.
40. Lumbosacral nerve trunk
41. Piriformis m.
42. Obturator nerve
43. Gluteus maximus m.
44. Superficial fascia (panniculus adiposus)
45. Intermuscular fat
46. Superior gluteal a. and v.
47. Gluteus minimus m.

48. Femoral head
49. Iliofemoral ligament
50. Gluteus medius m.
51. Lateral (femoral) cutaneous nerve (of thigh)
52. Tendon m. rectus femoris
53. Sartorius m.
54. Iliopsoas m.
55. External iliac a. and v. and femoral nerve
56. Inguinal ligament (Poupart)
57. Peritoneum and spermatic cord
58. Internal abdominal oblique m.
59. Superficial epigastric a. and v.
60. Inferior epigastric a. and v.
61. Rectus (abdominis) sheath
62. Rectus abdominis m.
63. Abdominal cavity
64. Pyramidalis m.

This section is at the level of the fifth sacral vertebra (31) slightly above the fifth anterior pair of sacral foramina. The cut passes through the upper portion of the acetabulum (16) and the upper part of the head of the femur (14, 48).

The external iliac artery (55) will pass beneath the inguinal ligament in this section to become the femoral artery in the next cut.

Note the vesical plexus of veins (25) surrounding the bladder. These veins communicate with the prostatic plexus of veins, which will be seen in subsequent sections.

The tendons of origin of the rectus femoris muscle (11) are seen: the "straight" tendon is attached to the anterior inferior iliac spine, and the posterior "reflected" tendon is attached to the posterior superior surface of the acetabulum. The two tendons unite to form an arch over the acetabulum.

The spermatic cords (3, 57) are well defined on both the right and left sides in this section. The vas deferens (27, 34) can be seen between the urinary bladder (28) and the ampulla of the rectum (29). Both ureters are intramural and cannot be seen in this cut.

The iliopectineal bursa (9) is identified.

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