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myelin

myelin Myelin is a fatty, protein-rich covering around neuronal axons.

Myelin is a fatty, protein-rich covering around neuronal axons. It electrically insulates the axon, helping nerve impulses travel more quickly than they do in fibers without myelin.

Also see

Sources

Drafting source: NCI Thesaurus. Flat export snapshot 2026-10-18. “Myelin Sheath” (C13261).
CC-BY-4.0 · Source snapshot SHA-256: b27ca135beadd46c343d248135377c5077c5447fe11b93803bfab866b84fcd38

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PsychTerms (psychterms.org), CC BY 4.0, version 1. “myelin.” Development preview.

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