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Neurotransmitters
UC MED 2015
12
Medical
Graduate
10/26/2011

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Cards

Term
Drugs can have what affects on neurotransmitters(6)?
Definition
1) Allow neurotransmitters to leak out of the storage vesicle
2) Block newly synthesized neurotransmitters from entering the storage vesicle
3) Block the synthesis of the neurotransmitter
4) Block the uptake of the released neurotransmitters
5) Block the binding of the neurotransmitter to its receptor on post-synaptic membranes
6) Blok the release of the neurotransmitter
Term
In order to be classified a neurotransmitter, a molecule must meet what criteria (7)?
Definition
1) small, water soluble molecule
2) stored in synaptic vesicles
3) act through receptors
4) Present in the synaptic cells at the appropriate concentrations
5) Enzymes that synthesize them must be present in the synaptic cells
6) Demonstrate that the chemical is released upon appropriate stimulation
7) Artificial application of the candidate molecules at a post-synaptic membrane will induce the expected response
Term
What three neurotransmitters can be classified as Catecholamines?
Definition
Dopamine, Norepinephrine, and Epinephrine- all three are derived from tyrosine
Term
What neurotransmitter is found at nerve-muscle junctions for all voluntary muscles, and many involuntary muscles?
Definition
Acetylcholine
Term
What disease is a result of this auto-antibodies directed against the acetylcholine receptors?
Definition
Myasthenia Gravis
Term
What is the function of monoamine Oxidase(MAO) inhibitors?
Definition
function to keep the neurotransmitter in an active form for longer than intended (first used to treat depression)
Term
How do you inactivate catecholamines?
Definition
1) reuptake at the synapse
2) chemical modification -such as by MAO(monamine oxidase) inhibitors
Term
How do you in activate serotonin?
Definition
1) reuptake
2) MAO inhibitors
Term
What can help relieve depression?
Definition
elevated serotonin and norepinephrine
Term
Zoloft, Paxil and Prozac do what?
Definition
They are selective serotonin reuptake inhibitors, so slow the reuptake of serotonin
Term
Trycyclics(eq imupramine) do what?
Definition
They block reuptake of norepinephrine and serotonin
Term
How do you inactivate GABA?
Definition
reuptake and then converted to succinate in the synapse
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