Examlex
A stone thrown from the top of a tall building follows a path that is:
Endorphins
Natural, opiate-like neurotransmitters linked to pain control and to feeling pleasure.
Dopamine
A neurotransmitter in the brain that plays a key role in regulating mood, motivation, and reward, among other functions.
Action Potential
A rapid, temporary change in the electrical charge of a cell membrane, essential for nerve signal transmission.
Dendrite
A branched projection of a neuron that receives signals from other neurons or sensory stimuli and conducts these to the cell body.
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