Name the cells which generate the myelin sheath

Question

Name the cells which generate the myelin sheath? Out of which substance is the myelin sheath made?

Answer 1

In central nervous system (or CNS) the myelin sheath is made up by the apposition of oligodendrocyte membranes. Each oligodendrocyte can cover up portions of axons of numerous dissimilar neurons. In peripheral nervous system (or PNS) the myelin sheath is made up by consecutive Schwann cell membranes covering the segments of a single axon. The Ranviers’ nodes show in the intercellular space among such cells. The myelin sheath is rich in lipids however it as well contains proteins.