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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 6.29

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 6.29

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Ligamentum teres (round ligament) of uterus
2. Vesical plexus of vv. and vagina, anterior wolf
3. Pubis
4. Pectineus m.
5. Arcus tendineus, obturator fascia
6. Sartorius m.
7. Obturator membrane
8. Rectus femoris m.
9. Iliopsoas m.
10. Obturator internus m.
11. Tensor fascia lata m.
12. Articular capsule of femur
13. Gluteus medius m.

14. Obturator externus m.
15. Vaginal a. and v.
16. Femur, lesser trochanter
17. Sciatic nerve
18. Ischial tuberosity
19. Inferior gluteal a. and v.
20. Internal pudendal a., v., and nerve
21. Inferior gluteal nerve
22. Internal anal sphincter
23. Anus

24. Coccyx (last appearance)
25. Anal crease
26. Internal pudendal a., v., and nerve
27. Superior gemellus m.
28. Tendon m. obturator internus
29. Sciatic nerve
30. Levator ani m.
31. Gluteus maximus m.
32. Femur, greater trochanter
33. Uterovaginal plexus of vv.
34. Trochanteric fossa

35. Gluteus medius m.
36. Vagina
37. Obturator internus m.
38. Femoral head
39. Tensor fascia lata m.
40. Ligamentum teres femoris
41. Iliopsoas m.
42. Rectus femoris m.
43. Obturator nerve a., and v.
44. Sartorius m.
45. Femoral a. and v.
46. Arcus tendineus, obturator fascia
47. Pubis
48. Urinary bladder
49. Median umbilical ligament

This section passes through the superior aspect of the pubic bones (3, 47), the lower portion of the left acetabulum at the insertion of the ligamentum teres femoris (40). Portions of the greater (32) and lesser (16) trochanters are seen. The ischial tuberosity (18) is seen on the right side. The anus (23) with its smooth muscle internal anal sphincter (22), and elements of levator ani muscle (30) can be identified.

The vagina (36) is located between the urinary bladder (48) and the anus (23).

The coccyx (24) makes its last appearance in this section.

The obturator membrane (7), closing the obturator foremen, is covered by the obturator internus muscle (10) and is seen on the right side.

Note the highly vascular vesical plexus of veins (2) (between the bladder [48] and vagina [36]) and the uterovaginal plexus of veins (33).

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