MHT CET Biology question

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

(A)Nerve fibre is insulated by a medullary sheath
(B)Sodium pump starts operating only at the cyton and then continuous 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 dendritesCorrect

Answer: (D)

Solution

Neurotransmitters are released only from axon endings, so the impulse passes across a synapse in one direction only;

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Question ID VK-076326