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A lie detector test is used to monitor a person's
Potassium
A chemical element with symbol K, essential for various bodily functions including nerve transmission and muscle contraction.
Action Potential
A rapid, temporary change in the electrical membrane potential of a neuron or muscle cell, allowing the transmission of signals.
Relatively Refractory Period
A phase following the absolute refractory period during which a neuron requires a stronger than normal stimulus to fire an action potential.
Absolutely Refractory Period
A phase following action potential in neurons during which no new action potential can be initiated, regardless of the strength of the incoming signal.
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