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Question : Myelin sheath is formed by

Answer»

Ranvier cells
muscle cells
Schwann cells
axon

Solution :Each segment of MYELIN sheath is formed by one Schwann cell.Myelin sheath is present in the myelinated nerve fibres.It is made up of a substance of lipids, proteins and water called myelin and serves as an insulating LAYER, preventing loss of energy of the nerve impulse during its PASSAGE ALONG the fibre.


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