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The beautiful brain cells you don't know about
Glia in a mouse brain.
Credit: Jonathan Cohen/NIH
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Star-shaped glia called astrocytes (red) are the most abundant cell in the human brain. Young oligodendrocytes (green) are glia that help insulate nerve cell axons in the brain. The blue cells are neurons.
Credit: Jonathan Cohen/NIH
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Astrocytes from a rat brain.
Credit: Jonathan Cohen/NIH
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An oligodendrocyte (green) extends multiple branches to contact the nerve cells' axons (purple) and wrap myelin insulation around them.
Credit: R. Douglas Fields/NIH
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