Question

write a short note on Myelin sheath ??​

Answer 1

Answer:

The sheath protects these fibers, known as axons, a lot like the insulation around an electrical wire. When the myelin sheath is healthy, nerve signals are sent and received quickly. But if you have MS, your body's immune system treats myelin as a threat. It attacks both the myelin and the cells that make it.

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Explanation:

Answer 2

Answer:

The myelin sheath is a fatty insulating later that surrounds the nerve cells of jawed vertebrates, or gnathostomes. ... Special cells called oligodendrocytes or Schwann cells create and store large amounts of myelin. The oligodendrocytes then wrap themselves around the axon of a nerve cell.