Ij which direction does a synapse allow a nerve impulse to travel
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Answer:
a nerve impulse can travel in only one direction. i.e., from brain top to bottom.
Explanation:
Nerve impulse travels in one direction because nerve cells (neurons) connect to each other by synapse. The synapse (neurotransmitter vesicle) acts as a valve and allows the only one-way flow of nerve impulse due to the presence of neurotransmitter which is found on the one side of the synapse and receptors being on the other side.
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