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Spinal CordOrganization and Pathways          Thomas Ahn, MD      Department of Neurology   Loyola University Medical Cent...
Why is it important?• Our failure to quickly diagnose, for example, a  spinal cord compression, can lead to  permanent par...
Protective Layers
Organization
Organization: Autonomic divisions
Organization: cross section
Organization: Roots & Nerves
Fiber types
Organization: Dorsal root
Organization: Gray matter          Wikipedia.com
Organization: Gray matter - Laminas                   Laminas (layers of nerve cells) aka Rexeds laminae                  ...
Organization: White Matter - Columns
Cortico-Spinal Tract: motor commands
Dorsal Column Tract: Medial lemniscal               system
Spinothalamic Tracts
Spino-Cerebellar Tracts
Other Descending tracts
Other Ascending Tracts
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Anatomy of spinal cord

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Anatomy of spinal cord

  1. 1. Spinal CordOrganization and Pathways Thomas Ahn, MD Department of Neurology Loyola University Medical Center June 2012
  2. 2. Why is it important?• Our failure to quickly diagnose, for example, a spinal cord compression, can lead to permanent paralysis.• To do so, it is essential to be familiar w/ its structures and neural tracks.
  3. 3. Protective Layers
  4. 4. Organization
  5. 5. Organization: Autonomic divisions
  6. 6. Organization: cross section
  7. 7. Organization: Roots & Nerves
  8. 8. Fiber types
  9. 9. Organization: Dorsal root
  10. 10. Organization: Gray matter Wikipedia.com
  11. 11. Organization: Gray matter - Laminas Laminas (layers of nerve cells) aka Rexeds laminae after the neuroanatomist who described them.
  12. 12. Organization: White Matter - Columns
  13. 13. Cortico-Spinal Tract: motor commands
  14. 14. Dorsal Column Tract: Medial lemniscal system
  15. 15. Spinothalamic Tracts
  16. 16. Spino-Cerebellar Tracts
  17. 17. Other Descending tracts
  18. 18. Other Ascending Tracts

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