The lipid-rich sheath surrounding AXONS in both the CENTRAL NERVOUS SYSTEMS and PERIPHERAL NERVOUS SYSTEM. The myelin sheath is an electrical insulator and allows faster and more energetically efficient conduction of impulses. The sheath is formed by the cell membranes of glial cells (SCHWANN CELLS in the peripheral and OLIGODENDROGLIA in the central nervous system). Deterioration of the sheath in DEMYELINATING DISEASES is a serious clinical problem.
    

concept

Nerve bundle - myelinated & unmyelinated

Myelination: oligodendrocyte engaging with neurites.

Myelinated and unmyelinated nerve fibres and blood vessel

Pathogenesis and etiology of demyelinating diseases : a symposium organized by Edith Pette and O. Westphal / edited by Krystina Burdzy and P. Kallós.

Purkinje cells in the cerebellum

Adami, John George (1862-1926)

Multiple Sklerose : Epidemiologie, Immunologie, Ultrastruktur / herausgegeben von Rudolf Manfred Schmidt ; bearbeitet von Helmut Enke [and others].

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Myelin Sheath

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Catalogue

Pathogenesis and etiology of demyelinating diseases : a symposium organized by Edith Pette and O. Westphal / edited by Krystina Burdzy and P. Kallós.

Purkinje cells in the cerebellum

Adami, John George (1862-1926)

Myelinated and unmyelinated nerve fibres and blood vessel

Multiple Sklerose : Epidemiologie, Immunologie, Ultrastruktur / herausgegeben von Rudolf Manfred Schmidt ; bearbeitet von Helmut Enke [and others].