Oligodendrocytes exist only in the central nervous system, including the brain and spinal cord. They form myelin sheaths, providing support and insulation for the axons of the central nervous system of some vertebrates. They are equivalent to Schwann's functional peripheral nervous system cells. It is estimated that a single oligodendrocyte can protect 50 axons.https://neuros.creative-biolabs.com/category-oligodendroglial-cell-lines-12.htm
