Definition that contains myelin sheath
- ms a chronic progressive nervous disorder involving loss of myelin sheath around certain nerve fibers
- nodes of ranvier small gaps in the myelin sheath of medullated axons
- schwann cell any cell that covers the nerve fibers in the peripheral nervous system and forms the myelin sheath
- disseminated sclerosis a chronic progressive nervous disorder involving loss of myelin sheath around certain nerve fibers
- oligodendria tissue consisting of glial cells with sheetlike processes that form the myelin sheath of nerve fibers
- myelinization the development of a myelin sheath around a nerve fiber
- substantia alba whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
- multiple sclerosis a chronic progressive nervous disorder involving loss of myelin sheath around certain nerve fibers
- oligodendroglia tissue consisting of glial cells with sheetlike processes that form the myelin sheath of nerve fibers
- demyelinate destroy the myelin sheath of