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FRidgard t1_j2a94uv wrote

Schwann cell is wrapped around neuron, that counts for neuronal cells outside central nervous system. Myelin sheeth is inside central nervous system by oligodendrocytes

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RealLonestarTX t1_j2aasw2 wrote

The Schwann cell is a separate cell in the periphery nervous system. In the CNS oligodendrocytes do the same job. These cells wrap part of their plasma membrane around the axon of the neuron to aid conduction and we call that part left there the myelin sheath. https://www.ncbi.nlm.nih.gov/books/NBK27954/

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