Electrical signals move down a neuron until it reaches the synapse, where it sends chemical messengers across to receptors on the surface of te second neuron
When the electrical signal reaches the synapse, it causes small chemicals to be released onto the next neuron. Those messenger chemicals bind to molecules called receptors. The receptors start an electrical signal in the next cell. In this manner -- electrical signal down the cell, chemical messenger across the synapse, electrical signal down the next cell --neurons are able to pass information in the brain.


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