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Question

In nerve fibre, the impulses transmit quickly due to



A

Myelin sheath

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B

Nodes of Ranvier

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C

Both (a) and (b)

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D

None of the above

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Solution

The correct option is C

Both (a) and (b)


In nerve fibres, the impulses transmit quickly due to myelin sheath and nodes of Ranvier. Three key functions of myelin sheath are:
(i) Protection of nerve fibre
(ii) Insulation of nerve fibre
(iii) Increases the rate of transmission of nerve impulses.


Biology

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