Neurotransmitters Week 123

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1. True or False. Neurones only make one neurotransmitter.

Explanation

This theory, called Dales principle, is largely discredited. Many neurones make one small molecule neurotransmitter and one peptide neurotransmitter. However, in practical terms it is often useful to consider neurones as only making one neurotransmitter. For example, serotinergic neurones make serotonin.

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About This Quiz
Neurotransmitters Week 123 - Quiz

Chemical reactions occur in ways that are at times hard to understand. Basically, neurotransmitters are the endogenous chemicals that allow the neurotransmission during reactions. Take up the quiz and test your knowledge. All the best.

2.
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2. What is the general term given to the type of neurotransmitter receptor that does not directly conduct ions through a pore. This type of receptor is coupled to intracellular signalling mechanisms, usually through G-proteins.
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3. What is the general term given to the type of neurotransmitter receptor that conducts ions through a pore?
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4. Neuropeptide whose actions are mimicked by morphine
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5. The main excitatory neurotransmitter of the central nervous system
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6. Neurotransmitter whose receptors are stimulated by the Parkinsons disease treatment Ropinirole
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7. The main excitatory neurotransmitter of the central nervous system
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8. The neurotransmitter whose abundance is increased by fluoxetine
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9. Receptors whose function is potentiated by benzodiazepines such as lorazepam
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10. Which of the following statements can be applied to "excitatory" neurotransmitters? (Select all that apply)

Explanation

The only thing that defines a neurotransmitter as excitatory is if its actions result in an increased likelihood of an actional potential firing. Glutamate is the archetypal excitatory neurotransmitter, tho others can be.

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11. Inhibitory neurotransmitter of the spinal cord that appears to have only ionotropic (no metabotropic) receptors
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12. Neurotransmitter whose receptors are blocked by the antipsychotic haloperidol
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13. Which receptors are blocked by ondansetron
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14. Neurotransmitter whose actions at ionotropic receptors will result in an EPSP

Explanation

EPSP stands for Excitatory Postsynaptic Potential. This term refers to the local depolarization that occurs when glutamate binds to ligand-gated sodium channels. If enough EPSPs are generated in a sufficient timeframe, an action potential will fire

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15. Within the CNS, is made principally by the raphe nuclei.
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16. Which of the following elements in the life of a neurotransmitter are targeted pharmacologically to treat neurological and psychiatric diseases?
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17. Major anatomical site(s) which give(s) rise to dopaminergic projections
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18. Neurotransmitter transporters...... (Select all that apply)

Explanation

There are many different types of transporter, with some neurotransmitters having more than one. Transporters have not (yet) been found for some neurotransmitters (eg endocannabinoids).

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19. Is/are broken down by Monoamine Oxidase A

Explanation

These three (and many other) neurotransmitters are called monoamines due to their chemistry.

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True or False. Neurones only make one neurotransmitter.
What is the general term given to the type of neurotransmitter...
What is the general term given to the type of neurotransmitter...
Neuropeptide whose actions are mimicked by morphine
The main excitatory neurotransmitter of the central nervous system
Neurotransmitter whose receptors are stimulated by the Parkinsons...
The main excitatory neurotransmitter of the central nervous system
The neurotransmitter whose abundance is increased by fluoxetine
Receptors whose function is potentiated by benzodiazepines such as...
Which of the following statements can be applied to...
Inhibitory neurotransmitter of the spinal cord that appears to have...
Neurotransmitter whose receptors are blocked by the antipsychotic...
Which receptors are blocked by ondansetron
Neurotransmitter whose actions at ionotropic receptors will result in...
Within the CNS, is made principally by the raphe nuclei.
Which of the following elements in the life of a neurotransmitter are...
Major anatomical site(s) which give(s) rise to dopaminergic...
Neurotransmitter transporters...... (Select all that apply)
Is/are broken down by Monoamine Oxidase A
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