Refer to the graph showing the tracing of membrane potential change during the course of an action potential. Which of the following is the correct sequence of events and conditions indicated by the labels "a," "b," "c," and "d"?
A) Depolarization, resting potential, repolarization, undershoot
B) Resting potential, depolarization, undershoot, repolarization
C) Undershoot, depolarization, repolarization, resting potential
D) Resting potential, depolarization, repolarization, undershoot
E) Repolarization, depolarization, undershoot, resting potential

Question

Refer to the graph showing the tracing of membrane potential change during the course of an action potential.  Which of the following is the correct sequence of events and conditions indicated by the labels "a," "b," "c," and "d"?
A) Depolarization, resting potential, repolarization, undershoot 
B) Resting potential, depolarization, undershoot, repolarization 
C) Undershoot, depolarization, repolarization, resting potential 
D) Resting potential, depolarization, repolarization, undershoot 
E) Repolarization, depolarization, undershoot, resting potential

Quizplus · Accepted Answer

The correct sequence of events and conditions indicated by the labels "a," "b," "c," and "d" is as follows: Resting potential (a), depolarization (b), repolarization (c), undershoot (d). This is the classic sequence of events in an action potential.

Refer to the Graph Showing the Tracing of Membrane Potential