What is the role of neurotransmitters in nerve impulses?
A. They create the electrical charge of the impulse
B. They transmit the impulse across the synapse
C. They control the strength of the impulse
D. They regulate the frequency of impulses
Correct Answer: B.They transmit the impulse across the synapse
Explanation:
Neurotransmitters are chemical messenger molecules that are released by nerve cells at the synapse, the junction between two nerve cells or between a nerve cell and a muscle or gland cell. The neurotransmitters bind to receptors on the next cell and transmit the impulse across the synapse.
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