MH 047 Spinal Cord

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Spinal Cord

Cross section of the spinal cord within a vertebra surrounded by skeletal muscle.

The is divided into the butterfly-shaped grey matter and surrounding white matter.

- butterfly-shaped region that contains nerve cell bodies and supporting glial cells.
- Dorsal Horns (, ) - upper parts of the wings that receive sensory input from peripheral neurons.
- Ventral Horns (, ) - lower parts of the wings that contain the cell bodies of that give rise to the motor portion of peripheral nerves.
- surrounds the gray matter and contains ascending and descending axons (bundled into tracts) and supporting glial cells.
- small, round structure in the center of the spinal cord that contains cerebral spinal fluid. Lined with a simple cuboidal-to-columnar epithelium of ependymal cells.