00:01
Hello students here the question is about the epsp and ipsp.
00:06
So we have to identify each of the scenario that decode whether an action potential is produced or not.
00:13
So epsp stands for excessive reposed synaptic potential and ipsp stands for inhibited reposed synaptic potential.
00:21
And the negative sign indicates that the inner membrane of the cell is negatively charges.
00:27
For a, here threshold value is minus 50 millivolt that is cell needs at least 20 millivolt potential to generate an action potential.
00:39
Requirement is 20 millivolt for generation of action potential.
01:01
Epsp of 11 neuron is 2 millivolt each.
01:04
So in total 22 millivolt.
01:07
And ipsp of 4 neuron is 3 millivolt each 12 millivolt in total.
01:16
So we can say that net potential will be somehow 10 millivolt.
01:21
So no action potential because epsp 11 neuron and 2 millivolt total is 22 millivolt and ipsp 4 neuron 3 millivolt that is 12.
01:49
So net potential will somehow in 10 millivolt but requirement is 20 millivolt.
01:56
So there is no action potential.
01:59
So this is the method.
02:08
Next number b threshold is minus 60...