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Bassett Collection of Stereoscopic Images of Human Anatomy

Ligaments and joints of lumbosacral spine and pelvic girdle

Ligaments of coccygeal region, close-up posterior view

Image #215-2

KEYWORDS: Lumbar region, Muscles and tendons, Sacral region, Thoracic region, Vertebral column.

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Ligaments and joints of lumbosacral spine and pelvic girdle
Ligaments of coccygeal region, close-up posterior view
  1. Dorsal branch coccygeal nerve
  2. Dorsal branch sacral nerve V
  3. Connecting ioop between fifth sacral nerve and coccygeal nerve
  4. Piriform muscle (transected)
  5. Sciatic nerve
  6. Lateral border of sacrum
  7. Inferior gluteal artery
  8. Internal pudendal vein (cut off)
  9. Upper pointer: Pudendal nerve Lower pointer: Internal pudendal artery
  10. Inferior rectal nerve
  11. Ischial spine (covered by fibers of coccygeus muscle)
  12. Coccygeus muscle (overlying sacrospinous ligament)
  13. Levator ani muscle (pointer on iliococcygeus muscle)
  14. Obturator internus muscle
  15. Upper pointer: Inferior rectal artery Lower pointer: Perineal artery
  16. Lunate fascia (reflected to expose perineal vessels and nerves in pudendal canal)
  17. Levator ani muscle (pointer on pubococcygeus muscle)
  18. Anococcygeal nerve
  19. Sacral cornu (horn)
  20. Coccygeal cornu (horn)
  21. Aperture for dorsal ramus of fifth sacral nerve
  22. Dorsal superficial sacrococcygeal ligament
  23. Upper pointer: Deep dorsal sacrococcygeal ligament Lower pointer: Sacrotuberous ligament
  24. Coccyx (terminal segment)
  25. Lunate fascia
  26. Inferior pelvic diaphragmatic fascia
  27. Anococcygeal ligament
  28. External anal sphincter muscle
  29. Anus