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BIO NMDCAT Neurons
nmdcat.online July 7, 2026

The generation of an action potential follows the all-or-none principle, meaning that

A. A stronger stimulus produces a larger action potential
B. Any stimulus will generate an action potential
C. A threshold stimulus elicits a full-amplitude action potential
✓
D. Multiple subthreshold stimuli cannot cause an action potential

📝 Explanation

Once the threshold voltage is reached, the action potential occurs with a constant, maximum amplitude independent of stimulus strength. Stronger stimuli increase the frequency of impulses, not their amplitude.

📖 Additional Information

  • A stronger stimulus produces a larger action potential
  • Any stimulus will generate an action potential
  • A threshold stimulus elicits a full-amplitude action potential
  • Multiple subthreshold stimuli cannot cause an action potential

Once the threshold voltage is reached, the action potential occurs with a constant, maximum amplitude independent of stimulus strength. Stronger stimuli increase the frequency of impulses, not their amplitude.

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