00:01
Answer these questions or let's match them with the choices.
00:04
The first one says that the neuron cannot respond to a second stimulus no matter how strong.
00:10
So let's see, the neuron can't or cannot respond to a second stimulus.
00:22
That is because it is going to be in the absolute refractory period.
00:33
Period.
00:33
Okay, and so the next one says the interior of the cell becomes less negative due to an influx of sodium ions.
00:43
So when the sodium channels open, this is going to be depolarization.
00:52
So let's see, here we have interior of the cell.
00:56
This one is about the interior of the cell and it becomes less negative.
01:06
This is the depolarization.
01:11
Okay, so three says the specific period during which potassium ions diffuse out of the neuron due to the change in membrane permeability.
01:20
So this is basically going to be when the voltage -gated potassium channels open and then the sodium channels close.
01:28
This is repolarization...