Exam questionKROK 1Medicine ยท 2022
Two isolated threshold stimuli were applied to an isolated nerve ofa frog one after another. The second stimulus occurred during the phase of depolarization of the action potential. Why in this case will there be only one action potential generated?
Answer options
- Nerve excitability increased
- Threshold level of nerve depolarization decreased
- Nerve lability increased
- Potassium permeability of the nerve membrane decreased
- The second stimulus occurred during the absolute refractory period
Correct answer
The second stimulus occurred during the absolute refractory period
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