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What is a myelin sheath?

A myelin sheath is a protective cover that wraps around nerves. The myelin sheath helps to make sure messages sent through the nerves get to where they need to go.

Neurons are encased in a tough myelin sheath. This protective coating prevents the branches from tangling—and, thus, mixing up messages and disrupting connections—and insures that messages travel fast.

YOU: Raising Your Child: The Owner's Manual from First Breath to First Grade

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YOU: Raising Your Child: The Owner's Manual from First Breath to First Grade

There’s little doubt that parenting can be one of the most rewarding and satisfying experiences you’ll ever have. But it can be plenty tough, too: Around the clock, you’re working to keep your...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.