Examlex
Which component of the nervous system is comprised of sympathetic and parasympathetic divisions?
Neurotransmitter
Chemical messengers that cross synaptic gaps between neurons, transmitting messages from one neuron to another.
Dopamine
A neurotransmitter involved in controlling movement and posture, modulating mood, and playing a central role in positive reinforcement and dependency.
GABA
GABA (Gamma-Aminobutyric Acid) is a neurotransmitter in the brain that inhibits nerve transmission, calming nervous activity.
Cortisol
A hormone produced by the adrenal glands during stress or when blood-glucose levels are low, belonging to the steroid class.
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