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What is the main difference in time-use between 15- to 17-year-olds in the late 1970s and 15- to 17-year-olds in the early 2000s?
Depolarization
The process by which the electrical charge of a cell membrane becomes less negative, leading to the generation of an action potential in neurons.
Hyperpolarization
A change in a cell's membrane potential making it more negative, typically reducing the likelihood of generating an action potential.
Terminal Button
The small knoblike structures at the ends of axons that release chemical signals from the neuron into the synapse.
Axon Hillock
The cone-shaped region of an axon of a neuron where the axon originates from the cell body, and is considered the decision point for neural action potentials.
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