00:02
What is the refractory period and why is it significant? with specific reference to membrane potential, why is a neuron unable to trigger another potential during the refractory period? so a refractory period is a period right after stimulation when a nerve is unresponsive and it cannot be stimulated more.
00:24
It is important because it limits the rate of the generation of action potentials.
00:30
So looking at an action potentials, potential, an action potential.
00:38
So first, i'm sorry, so first of all, you have your resting membrane potential.
00:42
And then when you have a stimulation come through, if that stimulation is strong enough to go over the threshold, you generate what's known as an action potential.
00:53
You have the depolarization, and then you have the repolarization with the hyperpolarization, and then it goes back to resting.
01:03
So your refractory period can be divided into two.
01:08
Different periods.
01:10
You have your absolute refractory, which happens here.
01:16
And this is when the sodium channels are closed and they cannot be reopened...