Nerve fibres conduct impulses in

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(A) In a laboratory setting,if a nerve impulse is initiated in the middle of an isolated nerve fibre,it can travel in both directions $(bidirectional)

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One direction

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(A) In a laboratory setting,if a nerve impulse is initiated in the middle of an isolated nerve fibre,it can travel in both directions $(bidirectional)$.However,in the living body,nerve impulses are conducted in only one direction due to the presence of synapses.Synapses ensure that the impulse travels from the axon terminal of one neuron to the dendrite of the next neuron,making the transmission unidirectional.

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