Ilustration of an oligodendrocyte

Ilustration of an oligodendrocyte

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This image is part of the feature Progress In Treating Multiple Sclerosis


Caption: Illustration showing the role of an oligodendrocyte in the myelination of nerve fibres (axons) in the central nervous system (CNS - the brain & spinal cord). Oligodendrocytes belong to a group of cells called neuroglia ("nerve glue") which comprise all non-neural cells in the CNS. The dendritic processes from the cytoplasm of the oligodendrocyte give rise to the spiral-wrapped sandwich of cytoplasmic membrane that comprises the myelin sheath. A single oligodendrocyte may serve up to 50 nerve axons; 4 are visible here. Myelination effectively increases diameter of axon & hence velocity of impulse conduction.

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Keywords: anatomy, artwork, cns, fibres, human body, in cns, myelination, myelination in, nerve fibre, nervous, oligodendrocyte, system

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