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. 2025 Sep 25;19:1649748. doi: 10.3389/fnsys.2025.1649748

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Illustration of a neuron labeled with its parts. It shows the dendrite, nucleus, cell body (soma), axon, myelin sheath, node of Ranvier, axon terminal, and synapse. Arrows indicate the direction of impulse along the axon. — Neuron diagram image© wetcake/iStockphoto, used under license.