True or false: Oligodendrocytes form myelin sheaths around nerve fibers in the CNS?

Schwann cells are involved in many important aspects of peripheral nerve biology - the conduction of nervous impulses along axons, nerve development and regeneration, trophic support for neurons, production of the nerve extracellular matrix, modulation of neuromuscular synaptic activity, and presentation of antigens to T-lymphocytes. Myelination speeds transmission and is typically on smaller diameter nerve cells. Not all nerve cells are myelnated.

Nodes of Ranvier are not myelinated E is the answer.

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