How is Myelination Important for Neural Functions?
Myelination is the process by which glial cells, such as oligodendrocytes in the CNS and Schwann cells in the peripheral nervous system (PNS), wrap around the axons of neurons to form a myelin sheath. This sheath acts as an insulator and increases the speed of action potential propagation through a mechanism called saltatory conduction. Myelination is essential for efficient and rapid signal transmission.