Examlex
The space indicated by the letter B is called the _____.
Neurotransmitter
Chemical messengers that transmit signals across a chemical synapse, from one neuron (nerve cell) to another target neuron, muscle cell, or gland cell.
Acetylcholine
A neurotransmitter involved in many functions including muscle stimulation, heart rate, memory, and learning.
Dopamine
A neurotransmitter involved in many functions, including motivation, reward, attention, and regulating movement.
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