A second nerve impulse cannot be generated until________.
A) the Na ions have been pumped back into the cell
B) the membrane potential has been reestablished
C) proteins have been resynthesized
D) all sodium gates are closed

Question

Quizplus · Accepted Answer

A second nerve impulse cannot be generated until the membrane potential has been reestablished, which occurs when the ions involved in the previous action potential have returned to their original distribution (i.e. Na+ ions have been actively transported out of the cell and K+ ions have been actively transported back into the cell). This allows the membrane potential to return to its resting state, setting the stage for another action potential.

A Second Nerve Impulse Cannot Be Generated Until________