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Myelin and nerve structure

Myelin and nerve structure

Overview

Myelin is the layer that forms around nerve cells. Its purpose is to speed the transmission of impulses along nerve cells.

Review Date 5/14/2017

Updated by: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.