Below are the events that occur during continuous propagation of action potential. Select the correct order in which the events occur.
1) Adjacent membrane segment depolarizes.
2) Local current spreads to adjacent voltage gated channel.
3) Threshold is met.
4) Local current develops due to sodium moving in the cytosol.
A) 2,4,3,1
B) 2,4,1,3
C) 4,2,3,1
D) 4,2,1,3
E) 1,4,2,3

Question

Quizplus · Accepted Answer

The correct sequence for the propagation of an action potential involves first the development of a local current due to sodium ions moving into the cytosol (4), which then spreads to adjacent voltage-gated channels (2). Once the threshold is met (3), the adjacent membrane segment depolarizes (1), continuing the propagation of the action potential.

Below Are the Events That Occur During Continuous Propagation of Action