Putting the Events of the Action Potential into the Correct

Putting the Events of the Action Potential into the Correct Sequential Order Match the following steps associated with the action potential in the correct sequential order.

Solution

Voltage gate Sodium channel opens

Sodium permeability increases

Rising phase causes the membrane potential to reach +30 mV

Voltage gate K channels open

K permeability increases

Falling phase causes the cell membrane potential to become more negative

Resting membrane potential is reestablished.

Cell becomes more negative than resting membrane potential due to slow closure of K channels

Graded potential that depolarises membrane to threshold reaches trigger zone