Question

what is the direction of impulse in a neurone

Answer 1

Here is your answer
Neuron – (nerve cell) All nerve cells (neurons) generally consist of 4 parts: the cell body, dendrites, an axon, and synaptic end bulbs. The nerve impulse flows in one direction. The dendrites receive incoming nerve impulses from other neurons, and the axon transmits the impulse to another neuron or receptor.
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Answer 2

Therefore, nerve impulsescannot travel in the opposite direction, because nerve cells only have neurotransmitter storage vesicles going one way, and receptors in one place.