Which of the following statements regarding the absolute refractory period is false?
A)The potassium channels are closed and cannot be opened.
B)The sodium channels are closed and cannot be opened.
C)An action potential cannot be generated.
D)The absolute refractory period ensures that the action potential will travel only in one direction.

Question

Quizplus · Accepted Answer

The potassium channels are not what primarily define the absolute refractory period; it is characterized by the state of the sodium channels. During the absolute refractory period, the sodium channels are inactivated, making it impossible to initiate another action potential, regardless of the stimulus strength. This period ensures unidirectional propagation of the action potential and prevents the neuron from being immediately reactivated.

Which of the Following Statements Regarding the Absolute Refractory Period