Author Question: Which of the following is true of the action potential? a. More sodium channels are opened at a ... (Read 89 times)

DyllonKazuo · **on:** Jun 22, 2018

Which of the following is true of the action potential?

a. More sodium channels are opened at a lower voltage level than are the potassium channels.
b. The action potential requires 10 msec for completion.
c. The action potential requires the activity of the sodium-potassium transporters during the rising phase.
d. More potassium channels are opened at a lower voltage than are sodium channels.
e. The overshoot is due to a prolonged change in sodium conductance.

Question 2

Which of the following sets of terms do NOT belong together?

a. saltatory conduction; faster conduction speeds in smaller neurons
b. open sodium channels; membrane depolarization
c. saltatory conduction; slower conduction speeds in smaller neurons
d. open potassium channels; membrane repolarization
e. sodium-potassium pump; restoration of the normal concentrations of these ions

sarah_brady415 · **Reply #1 on:** Jun 22, 2018

Answer to Question 1

Answer: a. More sodium channels are opened at a lower voltage level than are the potassium channels.

Answer to Question 2

Answer: c. saltatory conduction; slower conduction speeds in smaller neurons