Control And Coordination Question 23

Question: Q. 2. Assertion (A): Nerve impulse is a one way conduction.

Reason (R): Nerve impulse is transmitted from dendrite to axon terminals.

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Solution:

Correct option: (c)

Explanation: Nerve impulses are always transmitted across a synapse from the axon terminals of one neuron to the dendrite / cell body of the next neuron but never in the reverse direction. Since, the neurotransmitter is present only in the axon terminals and not in the dendrite or cell body, it cannot be released from the dendrite or cell body even if the impulse reaches there.



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