Which glial cells myelinate axons in the CNS and in the PNS respectively?

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Multiple Choice

Which glial cells myelinate axons in the CNS and in the PNS respectively?

Explanation:
Myelination is carried out by different glial cells in the CNS and PNS. In the CNS, oligodendrocytes wrap around parts of multiple axons to form the myelin sheaths that insulate them. In the PNS, Schwann cells wrap around a single axon segment to create its myelin sheath. This arrangement speeds electrical signaling by enabling saltatory conduction between the gaps called nodes of Ranvier. Other glial cells, like astrocytes, microglia, and ependymal cells, don’t form myelin; they support neurons, participate in immune responses, or line brain cavities and ventricles.

Myelination is carried out by different glial cells in the CNS and PNS. In the CNS, oligodendrocytes wrap around parts of multiple axons to form the myelin sheaths that insulate them. In the PNS, Schwann cells wrap around a single axon segment to create its myelin sheath. This arrangement speeds electrical signaling by enabling saltatory conduction between the gaps called nodes of Ranvier. Other glial cells, like astrocytes, microglia, and ependymal cells, don’t form myelin; they support neurons, participate in immune responses, or line brain cavities and ventricles.

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