Respuesta :

Answer:

The myelin sheath is a protective covering that surrounds fibres called axons, the long thin projections that extend from the main body of a nerve cell or neuron. ... The main function of myelin is to protect and insulate these axons and enhance their transmission of electrical impulses.

Explanation:
myelin sheath provides insulation and protection for the cell as well as it quickens the transmissions between cells

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