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00:00 This is Lecturer 13 neuroscience, and continue discussing neural transmission. The last

00:09 of lectures we discussed that excited Terry glue dramaturgical synopsis upon the release of

00:16 neurotransmitter and that transmitter binding to limit will cause influx of sodium on positive

00:25 . Coming into the south will cause polarization the plasma membrane in the form

00:30 excited terry and pasta potential post synaptic e p s p in the Gabba

00:38 inhibitory central nervous system synopsis the gabba be released in Gabba will bind to

00:47 receptors. In this case, we're about high on the Tropic Gabba a

00:52 channels on the chloride influx will take Negative charge coming inside the cell will

00:58 this hyper polarization recorded posson optical in form of inhibitory parts Synaptic potential I

01:06 We distinguish between I on a tropic metal book. Tropic synaptic transmission I

01:12 a tropic synaptic transmission is when you the binding of your transmitter. And

01:20 same uh, receptor channel is a that conducts ions and medical tropic

01:28 You have neurotransmitter binding the G protein receptor, which can the fact either

01:33 protein, gated ion channels or enzymes , influencing the facts of secondary messengers

01:41 the cells. So we have now way that channels can be gated by

01:47 can channels can be gated by Liggins will open the channels and now

01:53 also know about G protein gated ion . We discussed neurotransmitter systems and will

02:01 this again, but acetylcholine synthesis of Colleen, degradation of acetylcholine,

02:08 common necessaries And what role Alzheimers medications nerve gas is playing the synapse.

02:14 all very important. Also, the that you have in the CNS two

02:18 of the acetylcholine receptors I on a which is nicotine IQ acetylcholine receptor Meadowbrook

02:26 which is glued in, which is protein coupled receptor. And so you

02:32 signaling through both of these receptors and looking thio the you know,

02:38 But these two receptors, one of is a receptor channel. Another one

02:42 a g protein coupled receptor in the receptor. The natural agonist endogenous produced

02:50 lee within our bodies. As a Colleen is producing our brains and our

02:55 and settle. Colleen will buy into Yucatan Nick I on a tropic receptor

03:01 most Karen IQ or a medical tropic receptor. Each one of these receptors

03:07 have exogenous substances, so exogenous agonists the continent receptors, nicotine and exogenous

03:16 form. Apparently, receptors must current . Ari is exogenous antagonists and atra

03:24 exogenous. It's also antagonism. So you have is I am my

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