They insulate axons by producing myelin sheathing in the neural network of some vertebrates.
Oligodendrocytes
astrocytes, microglia, ependymal, and oligodendrocytes.
Oligodendrocyte; processes of the oligodendrocytes form the myelin sheaths around the CNS nerve fibers
Oligodendrocytes are unipolar.Source: "Human Anatomy & Physiology" by Elaine N. Marieb and Katja Hoehn, ninth edition
oligodendrocytes for C.N.S. and shcwann cells for P.N.S.
oligodendrocytes
They are called oligodendrocytes but in the peripheral nervous system you would call them schwann cells.
neurons
Oligodendrocytes produce myelin in the brain and spinal cord. This process is known as myelination and the myelin will warp itself around the neurons.
Oligodendrocytes precursor cells are identified by them expressing a number of antigens. The develop during embryo-genesis and during the early stages of postnatal life.
Form myelin in the brain and spinal cord....
The four types of neuroglia in the central nervous system (CNS) are astrocytes, oligodendrocytes, microglia, and ependymal cells. Astrocytes provide structural support and regulate the chemical environment, oligodendrocytes produce myelin to insulate axons, microglia are the immune cells of the CNS, and ependymal cells line the ventricles and produce cerebrospinal fluid.