UF Health Jacksonville
MAIN MENU
QUICK LINKS
CONNECT WITH US
Search Our Site

Button
JACKSONVILLE
CALL US: 904-244-0411

Myelin

  • Definition

    • Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances.

      This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells. If myelin is damaged, these impulses slow down. This can cause diseases such as multiple sclerosis.
  • References

    • Calabresi PA. Multiple sclerosis and demyelinating conditions of the central nervous system. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 411.

      Dorland's Online Medical Dictionary. Available at: www.dorlands.com//def.jsp?id=100069346. Accessed June 3, 2015.