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All-or-None Firing and Refractory Period
Grade Level
Psychology
PSY.059 All-or-None Firing and Refractory Period
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Which statement best synthesizes all-or-none firing and refractory periods?
A
A neuron fires gradually taller action potentials as stimuli strengthen and never needs recovery time
B
A neuron ignores threshold and uses dendrites to decide spike height after every stimulus
C
A neuron fires a full action potential when threshold is reached, then briefly cannot or is less likely to fire while its membrane channels reset
D
A neuron fires only once in a lifetime because every refractory period is permanent
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