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 6.10

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. Urinary bladder 2. Vas deferens and spermatic cord 3. Pectineus m. 4. Femoral a. and v. 5. iliopsoas m. 6. Femoral nerve 7. Sartorius m. 8. Obturator nerve and obturator a. and 9. Rectus femoris m. and tendon 10. Ligament of femoral head (ligamentum teres femoris) 11. Femoral head 12. Femoral neck 13. Vastus lateralis 14. Tendon m. gluteus minimus	15. Gluteus medius m. 16. Femoral greater trochanter 17. Gluteus maximus m. 18. Tendon m. obturator internus 19. Inferior gemellus m. 20. Superior gemellus m. 21. Sciatic nerve 22. Obturator internus m. and obturator fascia 23. Internal pudendal a. and v. and pudendal nerve 24. Ischial spine 25. Vas deferens 26. First coccygeal vertebra, transverse process and cornu 27. Vertebra, S5	28. Rectum 29. Vas deferens 30. Vesical plexus of w. and intramural ureter 31. Coccygeus m. (first appearance) 32. Pelvic fascia 33. Inferior gluteal a. and v. 34. Sciatic nerve 35. Inferior gluteal a. and v. 36. Acetabular labrum 37. Panniculus adiposus (superficial fascia) 38. Femur, greater trochanter 39. Common tendon mm. obturator internus and gemelli 40. Obturator internus and gemelli mm. insertion 41. Articular cavity 42. Vastus lateralis m. 43. Vastus medialis m.	44. Tensor fascia lata m. 45. Iliofemoral and ischiofemoral ligaments 46. Tendon m. rectus femoris 47. Lateral (femoral) cutaneous nerve (of thigh) 48. Acetabular labrum and iliofemoral ligament 49. Pectineus m. and pubis, superior ramus 50. Inguinal Iymph node 51. Femoral a. and v. 52. Great saphenous v. (first appearance) 53. Spermatic cord 54. Transversalis fascia 55. Pyramidalis m. 56. Rectus abdominis m. 57. Peritoneal cavity

This section passes through the lowest part of the fifth sacral vertebra (27), the cornu and transverse process of the first coccygeal vertebra (26), spine of the ischium (24), and the lower part of the right acetabulum and upper part of the left (36). The head (11), neck (12), and greater trochanter (16) of the femur are seen on the right side.

The femoral artery and vein (4, 51) are in the fossa ovalis, and the spermatic cords (2, 53) are presently in a medial position.

The great saphenous vein (52) is seen for the first time in this section.

The common tendon of the obturator internus and gemelli muscles (18, 39) and its

insertion (40) onto the medial side of the greater trochanter (38) in front of the trochanteric fossa (38) of the femur are seen on both the right and left sides.

Gluteus medius muscle (15) is not seen after this cut, but the coccygeus muscle (31) makes its first appearance.

The relationship between the superior and inferior gemelli muscles (19, 20) and the sciatic nerve (21) is seen in this section. The sciatic nerve (21) leaves the pelvis via the greater sciatic foremen, usually but not always beneath the piriformis muscle and over the gemelli muscles.

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