Brain Neurotransmitter Systems Flashcards Preview

Neuro Block 2-RG > Brain Neurotransmitter Systems > Flashcards

Flashcards in Brain Neurotransmitter Systems Deck (13)
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1

What type of ion channel is the GABA channel?

Cl-

2

Two types of channels

ionotropic (fast)
metatropic (slow--G-protein coupled)

3

GABA: inhibitory or excitatory?

inhibitory

4

Postsynaptic glutamate receptors: inhibitory or excitatory

excitatory

5

Presynaptic glutamate receptors: inhibitory or excitatory?

inhibitory

6

Glycine as NT

inhibitory in CNS

7

Action of nAChR

open sodium channel

8

Action of mAChR

metabotropic improves memory (inhibitory)

9

Two types of dopamine receptors

D1 and D2

10

D1 receptors + disease

Gs (stimulatory)
increases cAMP production
Tourrette's

11

D2 receptors + disease

Gi (inhibitory)
decreases cAMP production
Parkinsons

12

How does norepinephrine act on alpha-2 receptors?

increases K+ conductance
hyperpolarizes cells

13

Agonists of norepinephrine on alpha-2 receptors

muscle spasmalytics