00:01
So today we're going to be going over problem number two in chapter two, the biology of behavior.
00:08
And essentially this question is asking us about our knowledge of what happens at the synapse.
00:14
So over here you can see i've drawn two terminals of two neurons.
00:19
So at the top, we have the presynaptic neuron.
00:22
So i'll write that beside it.
00:24
Pre -synaptic neuron.
00:29
And at the bottom, we have the post -synaptic neuron.
00:32
So we know that in neurons, electrical impulses travel down the axon all the way to terminal buttons, where they result in the release of neurotransmitters into the synaptic cleft.
00:54
So let's say in this pre -synaptic neuron, an action potential is triggered, that action potential travels as an electrical impulse down the axon, and finally reaches the terminal buttons, which is essentially what we're going to see here.
01:10
In the presynaptic neuron.
01:11
So let's say that this is a terminal button of the presynaptic neuron.
01:16
So just leave it over here.
01:17
Terminal button.
01:22
So we know that an electrical impulse has traveled all the way down...