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The Synaptic Communication Quiz

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Questions and Answers

Which one of these is the main way that neurons communicate with each other?

Chemical synapses (correct)

Electrical communication

Gap junctions

Neurotransmitter release

What triggers the vesicles containing neurotransmitters to dock with the end of the terminal?

Opening of sodium channels

Increase in calcium (correct)

Decrease in calcium

Opening of potassium channels

How are neurotransmitters released from the presynaptic terminal?

Endocytosis

Reuptake

Exocytosis (correct)

Transporters

What happens to unbound neurotransmitters in the synapse?

They are cleared through endocytosis Signup and view all the answers

What do antidepressants like serotonin reuptake inhibitors do?

Increase relative serotonin in the synaptic cleft Signup and view all the answers

What part of the neuron contains receptors and affect proteins for signal translation?

Postsynaptic density Signup and view all the answers

What are ionotropic receptors?

Ligand-gated ion channels Signup and view all the answers

Which type of receptor is ionotropic?

Glutamate receptor Signup and view all the answers

Which neurotransmitter tends to open chloride ion channels?

GABA Signup and view all the answers

What are the three subunits of a G protein?

Alpha, beta, and gamma Signup and view all the answers

What happens when the neurotransmitter binds to a G protein-coupled receptor?

The receptor activates second messenger cascades Signup and view all the answers

What do receptor agonists do?

Bind to receptors and have an effect on the neuron Signup and view all the answers

What is the effect of a stroke on neurons?

It leads to the death of neurons in a specific area of the brain Signup and view all the answers

What is the major inhibitory neurotransmitter in the brain?