Increasing excitatory signals above the threshold for neural activation will not affect the intensity of an action potential.This indicates that a neuron's reaction is
A) inhibited by the myelin sheath.
B) delayed by a refractory period.
C) an all-or-none response.
D) dependent on neurotransmitter molecules.

Question

Quizplus · Accepted Answer

This statement suggests that there is a threshold for neural activation, and once that threshold is surpassed, the neuron will fire an action potential with a standard (or "all-or-none") intensity. This means that the size or strength of the stimulus does not affect the size or strength of the resulting action potential. Instead, the frequency of action potentials can change in response to different stimulus intensities.

Increasing Excitatory Signals Above the Threshold for Neural Activation Will