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Assertion : Myelin sheath insulates the ...

Assertion : Myelin sheath insulates the nerve fibre and prevents its depolarisation.
Reason : Nerve impulses are conducted more rapidly in non-myelinated nerve fibres than in myelinated ones.

A

Both assertion and reason are true and reason is the correct explanation of assertion.

B

Both assertion and reason are true but reason is not the correct explanation of assertion.

C

Assertion is true but reason is false

D

Both assertion and reason are false.

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