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Bassett Collection of Stereoscopic Images of Human Anatomy

Dissection of anterior aspect of vertebral column

Sacral region.

Image #221-6

KEYWORDS: Lumbar region, Sacral region, Vertebral column.

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Dissection of anterior aspect of vertebral column
Sacral region.
lumbosacral part of vertebral canal,opened and viewed from in front
  1. Intervertebral disc L. III-IV (pointer on anulus fibrosus)
  2. Anterior longitudinal ligament
  3. Body of vertebra L. III (partly resected)
  4. Anterior internal vertebral venous plexus
  5. Intervertebral disc L. IV - V (pointer on nucleus pulposus)
  6. Dura mater
  7. Fibrous attachment of dura to posterior longitudinal ligament (cut off)
  8. Sympathetic tnmk
  9. Upper pointer: Sacrum (body resected) Lower pointer: Remnant of intervertebral disc S. I - II
  10. Iliopsoas muscle
  11. Lateral sacral arteries
  12. Femoral nerve
  13. Sacral plexus
  14. External iliac artery
  15. Obturator nerve
  16. Coccygeus muscle (posterior border of pelvic diaphragm)
  17. Piriform muscle
  18. Internal vertebral venous plexus
  19. Transverse process of vertebra L. IV
  20. Ligamentum flavum
  21. Pedicle (arch of vertebra) L. V (cut across)
  22. Upper pointer: Spinal ganglion lumbar nerve V Lower pointer: Spinal branch iliolumbar artery
  23. Lateral femoral cutaneus nerve
  24. Obturator nerve
  25. Femoral nerve
  26. Lateral part sacrum
  27. Lumbosacral trunk
  28. Sacral nerve I (in pelvic sacral foramen)
  29. Dural filum terminale (coccygeal nerves fused with this at lower level)
  30. Sacral nerve II
  31. Sacral canal (lined by periosteum)
  32. Sacral nerve III
  33. Sacral nerve IV
  34. Sacral nerve V
  35. Sympathetic trunk
  36. Coccygeal nerve
  37. Coccyx (covered by periosteum)