By contrast, in myelinated nerve fiber, currents can only occur where the axonal membrane is uncovered at the nodes of Ranvier. The lipid-rich myelin sheath, therefore, acts as an insulator ...

The diagnosis is myelinated retinal nerve fibers, a developmental anomaly in which myelination appears beyond the lamina cribrosa or the optic nerve head, on the nerve fibers of the disk and retina.

To rapidly transmit electrical signals in the brain, the long nerve fibers are insulated by specialized ... and monitoring the electrical activity of myelinated axons. To trigger axonal firing ...

Multiple sclerosis is characterized by inflamed lesions that damage the insulation surrounding nerve fibers and destroy ... contain just a few sections with myelinated nerve cells.