Examlex
Which of the following is true about political participation?
Refractory Periods
Time intervals following an action potential during which a neuron is incapable of firing again or the threshold for firing is elevated.
Voltage-Sensitive
Voltage-sensitive describes membranes or proteins that respond to changes in electrical potential across them, crucial for nerve signal transmission and muscle contraction.
Sodium Channels
Specialized protein molecules in cell membranes that allow the passage of sodium ions into and out of the cell, playing a crucial role in generating and conducting electrical signals.
Graded Potentials
Changes in electrical charge across the cell membrane that vary in size and are not propagated in an all-or-none manner.
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