Examlex
Submarine canyons on continental shelves and slopes are cut by __________.
Neurotransmitter
Chemical substances in the nervous system that transmit signals from one neuron to another.
Inhibitory
Pertaining to a neurotransmitter, hormone, or other substance that decreases the likelihood of a neuron firing an action potential.
Excitatory
Referring to substances or processes that increase the likelihood of a neuron firing and transmitting an electrical signal.
Dopamine
A neurotransmitter involved in reward, motivation, and addiction processes in the brain.
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