myelin |
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navigate by keyword : action axon brain cells central healthcare illustration image insulation magnified medical myelin myelination nerve nervous neuron node oligodendrocyte potential propagation ranvier rendering saltatory sheath synapse system |
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Oligodendrocytes form insulating myelin sheaths around neuron axons in the central nervous system. One oligodendrocyte can extend its processes to 50 axons. Myelin increases the impulse speed and decreases the capacitance of the axon membrane |
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