What Role Does the Myelin Sheath Play in Insulation?
The myelin sheath is a fatty layer that encases the axons of neurons. It is primarily composed of lipids, which act as insulators. The myelin sheath not only enhances the speed of nerve impulse conduction through saltatory conduction but also protects the axons from temperature variations. Disruption of the myelin sheath, as seen in diseases like multiple sclerosis, leads to impaired nerve function and reduced insulation.
