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Unidirectional transmission of nerve imp...

Unidirectional transmission of nerve impulse through nerve fibre is due to the fact that

A

Nerve fibre is insulated by a medullary sheath

B

Sodium pump start operating only at the cyton and then continues into the nerve fibre

C

Neurotransmitters are released by dendrites and not by axon endings

D

Neurotransmitters are released by the axon endings and not by dendrites

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The correct Answer is:
D
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