FOR STUDY Flashcards

(24 cards)

1
Q

asymmetric = excitatory = transporting WHAT

A

glutamate

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2
Q

symmetric = inhibitory = transporting WHAT

A

GABA

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3
Q

3 egs of excitatory receptors

A

NMDA, AMPA, mGlu

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4
Q

2 egs of inhibitory receptors

A

GABA-A, GABA-B

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5
Q

which molecules go in when neuron is depolarised?

A

Calcium, Sodium

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6
Q

when you depolarise a neuron you ___ its membrane potential and it is ___ likely to fire

A

increase, more

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7
Q

when you hyperpolarise a neuron you ___ its membrane potential and it is ___ likely to fire

A

decrease, less

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8
Q

how is the fact that ionotropic receptors have rapid change in membrane potential good for things like learning and ___ conditioning? via ____ receptors, ____ synaptic connections

A

fear, allows real-time, rapid learning via NMDA receptors - strengthening synaptic connections

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9
Q

metabotropic receptors activate ___ messenger systems and are ___ than ionotropic receptors

A

second, slower

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10
Q

metabotropic receptors influence ___-term ___ changes in neurons

A

long, structural

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11
Q

what do metapotropic receptors do to the fast responses of ionotropic receptors?

A

fine-tine and sustain, make learning more durable and flexible

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12
Q

outline the process of a stimulatory GPCR (metabotropic receptor) activating adenylyl cyclase

A

alpha subunit in the g protein goes and binds to adenylyl cyclase, which opens sodium/calcium channels,

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13
Q

what do inhibitory GPCRs do?

A

inhibit adenylyl cyclase, decrease plasticity and hyperpolarise cell

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14
Q

the two kinds of ionotropic glutamate receptors are…

A

AMPA, NMDA

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15
Q

AMPA receptors allow influx of ___ when opened, and are responsible for ___ postsynaptic potentials

A

sodium, excitatory

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16
Q

NMDA receptors allow influx of ____ and ___ when opened, and what does calcium promote?

A

sodium, calcium, promotes neurotransmitter release, synaptic plasticity

17
Q

what do you need to open an NMDA receptor

A

glycine, glutamate, pop open the magnesium plug

18
Q

GABA-A is what kind of receptor

19
Q

MDMA (ecstasy) and SSRIs are ____, working by ____ reuptake of ____

A

AGONISTS, BLOCKING, SEROTONIN

20
Q

cocaine ___ activity of ____ transporter, and is a(n) ___

A

blocks, dopamine, agonist

21
Q

amphetamines can ___ dopamine transporters, meaning they cause its ___

A

reverse, release

22
Q

ketamine is a(n) _____, and ____ ____ receptors by resembling the ___ plug

A

antagonist, blocks, NMDA, magnesium

23
Q

what happens when adenylyl cyclase is bound to? (other than channel opening)

A

increased gene transcription, increased long-term potentiation, synaptic plasticity

24
Q

why is gene transcription important

A

long-term changes, foundation of strengthening/forming synaptic connection –> long-term memory