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n. the minute gap across which nerve impulses pass from one neuron to the next, at the end of a nerve fibre. Reaching a synapse, an impulse causes the release of a neurotransmitter, which diffuses across the gap and triggers an electrical impulse in the next neuron. Some brain cells have more than 15,000 synapses. See also neuromuscular junction.

Subjects: Science and Mathematics — Medicine and Health.

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