[fatty, axon-enwrapping sheath that serves to speed up neural conduction, formed by concentric layers of Schwann's cell (peripheral) or oligodendrocyte (CNS) membranes; loss or damage leads to severe loss of neural function, as in multiple sclerosis. ( CSP )]
UMLS (NCI) C0026969 Relation/PAR: Body System, Neurologic
Relation/CHD: Node of Ranvier
myelination