Look at the diagram of an axon. It has a covering like structure on them known as the myelin sheath. What is its primary function?

It maintains shape of the neuron

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Electrical insulation

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Its is protective in nature

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none of these

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Solution

The correct option is B Electrical insulation
Some neurons have a fatty layer covering their axons. This layer is called myelin sheath. The primary function of this sheath is to act as a layer of insulation.

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The axon is covered by the myelin sheath which is then covered by ___

The myelin sheath is formed by _______ which covers the axons of some neurons.

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