Look at the diagram of axon. It has this covering like structure on them called myelin sheath. What is its function ?
A
It maintains shape of the neuron
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B
Electrical insulation
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C
It is protective in nature
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D
none of these
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Solution
The correct option is B Electrical insulation Neurons are covered by myelin sheath to prevent the escape of impulse to the surrounding. This electrically insulating material/myelin sheath prevents the electrical impulses from jumping to other neurons. In short, they prevent short-circuiting of impulses.