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 6.14

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. Deep fascia of penis 2. Dorsal vessels of penis 3. Dorsal nerve of penis 4. Corpus cavernosum 5. Pudendal plexus of veins 6. Tendon m. gracilis 7. Adductor longus m. 8. Adductor brevis m. 9. Femoral a. 10. Sartorius m. 11. Lateral femoral circumflex a. and 12. Artery of bulb and bulb of penis 13. Vastus medialis m. 14. Tensor fascia lata m. 15. Pectineus m.	16. Femoral shaft 17. Vastus lateralis m. 18. Tendon m. gluteus maximus 19. Adductor minimus m. (adductor magnus m.) 20. Perforating femoral a. and v. 21. Skin 22. Superficial (fatty) fascia 23. Inferior gluteal a. and v. and sciatic nerve 24. Quadratus femoris m. 25. Sacrotuberous ligament 26. Ischial tuberosity 27. Ischiocavernosus m. 28. Ischiorectal fossa 29. Inferior fascia of urogenital diaphragm 30. Central perineal tendon 31. Anus	32. Anococcygeal ligament 33. Sphincter ani internus m. 34. Sphincter ani externus m. 35. Superficial transverse perinei m. 36. Deep transverse perinei m. 37. Pudendal plexus of vessels and pudendal nerve 38. Obturator externus m. 39. Ischial tuberosity 40. Adductor minimus m. (adductor magnus m.) and obturator neurovascular bundle 41. Gluteus maximus m. 42. Common tendon mm. semitendinosus and biceps femoris (long head) 43. Tendon m. semimembranosus 44. Inferior gluteal a. and v. 45. Sciatic nerve 46. Quadratus femoris m. 47. Tendon m. gluteus maximus 48. Femur, lesser trochanter 49. Iliotibial tract 50. Perforating vessels of femoral a. and v.	51. Vastus lateralis m. 52. Vastus medialis m. 53. Iliopsoas m. 54. Rectus femoris m. and tendon 55. Lateral (femoral) cutaneous nerve (of thigh) 56. Pectineus m. 57. Sartorius m. 58. Femoral a. and v. with (smaller) lateral femoral circumflex vessels 59. Saphenous v. 60. Lymph node 61. Obturator nerve, anterior ramus 62. Inferior epigastric a. 63. Crus penis and corpus cavernosum 64. Cavernous urethra and corpus spongiosum 65. Spermatic cord and pampiniform plexus of vv. 66. Penile urethra and corpus spongiosum penis 67. Deep fascia of penis (Bucks fascia) 68. Septum penis 69. Tunica albuginea 70. Penis

This section passes transversely through the proximal part of the shaft of the penis (70), the penile urethra (64, 66), the bulb of the penis (12), the anococcygeal ligament (32), and the anus (31).

The femoral artery and vein (58) and their branches (11, 20, 50) are seen. The inferior gluteal vessels (23, 44) are intimately associated and travel with the sciatic nerve (23, 45).

On the lateral side of the femur vastus medialis (13, 52) and lateralis (17, 51) can be identified. On the medial side the iliopsoas (53) is seen. The superficial transverse perinei muscle (35) is cut for the first time. The medial (adductor) group of muscles include gracilis(6), pectineus (15,56), adductor brevis (8), adductor longus (7), adductor magnus (adductor minimus) (19, 40), and obturator externus (38) muscles. These muscles are all innervated by the obturator nerve (40, 61) except pectineus (supplied by the femoral nerve) and, in part, adductor magnus (supplied by the sciatic nerve). Adductor minimus is the name given to the superior fasciculus of the adductor magnus muscle, which is usually distinct or separated from the remaining two, usually fused, fasciculi of the muscle mass. Adductor minimus may be innervated by the nerve to quadratus femoris.

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