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<peir-vm>UAB-Histology-00015</peir-vm>

[[File:HistologicChapter6SpinalCord.jpg|thumb|200px|Spinal Cord]]

The spinal cord is composed of two principal parts extending the length of the cord, the inner core of gray matter and an outer layer of white matter. The entire cord is supported in a framework of neuroglia. In the most peripheral part of the cord, processes of fibrous astrocytes condense to form the marginal glial membrane, in which nerve fibers are absent.