Skip to: Astrocytes Oligodendrocytes and NG2 Cells Microglia Other Functions Summary Glial cells are non-neuronal cells found within the brain and the rest of the nervous system. There are approximately 60 billion glia to 16 billion neurons within the cortex, but only 16 billion glia to 69 billion neurons in the cerebellum. Overall, there are roughly the same number of […]

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