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Myelinated nerves, SEM
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Myelinated nerves, SEM
Myelinated nerves. Coloured scanning electron micrograph (SEM) of a freeze-fracture through peripheral nerves to show Schwann cells (green) and myelinated nerves (pink). A Schwann cell wraps its cell membrane around the nerve a number of times. In-between each cell membrane layer is a layer of myelin, an electrically insulating fatty layer. A Schwann cell effectively thickens a nerves membrane and increases the speed at which nerve impulses are relayed. The Schwann cells cytoplasm surrounds the axons (beige)
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Media ID 6421782
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Axon Axons Fibres Fracture Myelin Sheath Myelinated Myelination Nerve Fibre Nerves Nervous Neurofilament Neurofilaments Plasma Membrane Schwann Cell System Tubule Tubules
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