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?

<p>They are cleared through endocytosis (C)</p> Signup and view all the answers

What do antidepressants like serotonin reuptake inhibitors do?

<p>Increase relative serotonin in the synaptic cleft (C)</p> Signup and view all the answers

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

<p>Postsynaptic density (A)</p> Signup and view all the answers

What are ionotropic receptors?

<p>Ligand-gated ion channels (D)</p> Signup and view all the answers

Which type of receptor is ionotropic?

<p>Glutamate receptor (A)</p> Signup and view all the answers

Which neurotransmitter tends to open chloride ion channels?

<p>GABA (C)</p> Signup and view all the answers

What are the three subunits of a G protein?

<p>Alpha, beta, and gamma (A)</p> Signup and view all the answers

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

<p>The receptor activates second messenger cascades (D)</p> Signup and view all the answers

What do receptor agonists do?

<p>Bind to receptors and have an effect on the neuron (C)</p> Signup and view all the answers

What is the effect of a stroke on neurons?

<p>It leads to the death of neurons in a specific area of the brain (A)</p> Signup and view all the answers

What is the major inhibitory neurotransmitter in the brain?

<p>GABA (C)</p> Signup and view all the answers

What is the focus of neurophysiology?

<p>How different cells in the brain communicate (B)</p> Signup and view all the answers

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