The Myelin Sheaths That Surround the Axons of Some of the Neurons

Question

The myelin sheaths that surround the axons of some of the neurons in the CNS are formed by
A)astrocytes.
B)Schwann cells.
C)oligodendrocytes.
D)microglia.
E)ependymal cells.

Accepted Answer

Myelin sheaths around axons in the CNS are formed by oligodendrocytes, while in the PNS, they are formed by Schwann cells. Astrocytes, microglia, and ependymal cells do not form myelin sheaths.