Once the threshold potential of a nerve impulse is achieved, ____.
A) an action potential may occur or it may not
B) an action potential will occur
C) sodium channels close
D) the resting potential immediately follows
E) potassium channels open

Question

Once the threshold potential of a nerve impulse is achieved, ____.​
A) ​an action potential may occur or it may not
B) ​an action potential will occur
C) ​sodium channels close
D) ​the resting potential immediately follows
E) ​potassium channels open

Quizplus · Accepted Answer

Once the threshold potential is reached, an action potential is inevitably triggered, leading to a rapid change in membrane potential as sodium channels open, allowing sodium ions to enter the cell.

Once the Threshold Potential of a Nerve Impulse Is Achieved