Suboccipital Region and Vertebral Canal - Laboratory Identifications

Suboccipital Region

  1. Occipital artery - crossing superior nuchal line
  2. Greater occipital nerve - crossing superior nuchal line medial to occipital artery
  3. Rectus capitis posterior minor - inferior nuchal line to arch of atlas
  4. Rectus capitis posterior major - inferior nuchal line to spine of axis
  5. Obliquus capitis superior - inferior nuchal line to transverse process of atlas
  6. Obliquus capitis inferior - transverse process of atlas to spine of axis
  7. Vertebral artery - passing through transverse foramen and crossing groove of atlas and entering posterior atlantooccipital membrane
  8. Suboccipital nerve - within the boundaries of the triangle and providing motor innervation
  9. Greater occipital nerve - crossing inferior border of obliquus capitis inferior

Vertebral Canal

  1. Supraspinous ligament - continuous across the posterior surface of the spines (ligamentum nuchae in cervical region)
  2. Interspinous ligament - between each spine
  3. Ligamentum flavum - between the lamina
  4. Lamina - between spine and pedicle
  5. Epidural fat
  6. Posterior internal vertebral venous plexus - between ligamentum flavum and thecal sac
  7. Anterior internal vertebral venous plexus
  8. External vertebral venous plexus
  9. Dura mater of spinal cord
  10. Denticulate ligament - extension of pia mater from cord to lateral wall of thecal sac
  11. Ventral and posterior roots of cord
  12. Dorsal root ganglion (sensory ganglion) - within intervertebral foramen
  13. Posterior longitudinal ligament - making up part of anterior border of spinal canal

-- WikiGuest - 29 Mar 2024
Topic revision: r4 - 19 Oct 2016, LorenEvey
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