A complete segment by segment outline of the levels and major internal structures of the spinal cord is as follows:

1.  SPINAL CORD
1.Cervical Segmental Levels
   1.1.  Cervical 1
      1.1.1.  Gray Matter Nuclei/Areas
      1.1.2.  White Matter
   1.2.  Cervical 2
      1.2.1.  Gray Matter Nuclei/Areas
      1.2.2.  White Matter
   1.3.  Cervical 3
      1.3.1.  Gray Matter Nuclei/Areas
      1.3.2.  White Matter
   1.4.  Cervical 4
      1.4.1.  Gray Matter Nuclei/Areas
      1.4.2.  White Matter
   1.5.  Cervical 5
      1.5.1.  Gray Matter Nuclei/Areas
      1.5.2.  White Matter
   1.6.  Cervical 6
      1.6.1.  Gray Matter Nuclei/Areas
      1.6.2.  White Matter
   1.7.  Cervical 7
      1.7.1.  Gray Matter Nuclei/Areas
      1.7.2.  White Matter
   1.8.  Cervical 8
      1.8.1.  Gray Matter Nuclei/Areas
      1.8.2.  White Matter
2.  Thoracic Segmental Levels
   2.1.  Thoracic  1
      2.1.1.  Gray Matter Nuclei/Areas
      2.1.2.  White Matter
   2.2.  Thoracic  2
      2.2.1.  Gray Matter Nuclei/Areas
      2.2.2.  White Matter
   2.3.  Thoracic  3
      2.3.1.  Gray Matter Nuclei/Areas
      2.3.2.  White Matter
   2.4.  Thoracic  4
      2.4.1.  Gray Matter Nuclei/Areas
      2.4.2.  White Matter
   2.5.  Thoracic  5
      2.5.1.  Gray Matter Nuclei/Areas
      2.5.2.  White Matter
   2.6.  Thoracic  6
      2.6.1.  Gray Matter Nuclei/Areas
      2.6.2.  White Matter
   2.7.  Thoracic  7
      2.7.1.  Gray Matter Nuclei/Areas
      2.7.2.  White Matter
   2.8.  Thoracic  8
      2.8.1.  Gray Matter Nuclei/Areas
      2.8.2.  White Matter
   2.9.  Thoracic  9
      2.9.1.  Gray Matter Nuclei/Areas
      2.9.2.  White Matter
   2.10.  Thoracic  10
      2.10.1.  Gray Matter Nuclei/Areas
      2.10.2.  White Matter
   2.11.  Thoracic  11
      2.11.1.  Gray Matter Nuclei/Areas
      2.11.2.  White Matter
   2.12.  Thoracic  12
      2.12.1.  Gray Matter Nuclei/Areas
      2.12.2.  White Matter
   2.13.  Thoracic  13
      2.13.1.  Gray Matter Nuclei/Areas
      2.13.2.  White Matter
3.  Lumbar Segmental Levels
   3.1.  Lumbar  1
      3.1.1.  Gray Matter Nuclei/Areas
      3.1.2.  White Matter
   3.2.  Lumbar 2
      3.2.1.  Gray Matter Nuclei/Areas
      3.2.2.  White Matter
   3.3.  Lumbar 3
      3.3.1.  Gray Matter Nuclei/Areas
      3.3.2.  White Matter
   3.4.  Lumbar 4
      3.4.1.  Gray Matter Nuclei/Areas
      3.4.2.  White Matter
   3.5.  Lumbar 5
      3.5.1.  Gray Matter Nuclei/Areas
      3.5.2.  White Matter
   3.6.  Lumbar 6
      3.6.1.  Gray Matter Nuclei/Areas
      3.6.2.  White Matter
   3.7.  Lumbar 7
      3.7.1.  Gray Matter Nuclei/Areas
      3.7.2.  White Matter
4.  Sacral Segmental Levels
   4.1.  Sacral 1
      4.1.1.  Gray Matter Nuclei/Areas
      4.1.2.  White Matter
   4.2.  Sacral 2
      4.2.1.  Gray Matter Nuclei/Areas
      4.2.2.  White Matter
   4.3.  Sacral 3
      4.3.1.  Gray Matter Nuclei/Areas
      4.3.2.  White Matter
   4.4.  Sacral 4
      4.4.1.  Gray Matter Nuclei/Areas
      4.4.2.  White Matter
5.  Filum Terminale