Neural Signal Integration Quiz
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Questions and Answers

What is spatial summation?

  • The process of releasing a neurotransmitter
  • Combining signals that occur at different sites on the neuron's membrane (correct)
  • Conduction of an action potential along a myelinated axon
  • Combining neural signals that occur at different times at the same synapse

    • What characterizes the absolute refractory period?

  • A period during which it is impossible to elicit another action potential in the same neuron (correct)
  • Combining signals that occur at different sites on the neuron's membrane
  • Opening and closing of ion channels in response to changes in membrane potential
  • Neurotransmitter storage in synaptic vesicles

    • What are neuropeptides?

  • Combining neural signals that occur at different times at the same synapse
  • Proteins stored in synaptic vesicles
  • Conduction of an action potential along a myelinated axon
  • Amino acid chains comprising 3 to 36 amino acids (correct)

    • What is exocytosis in the context of neurotransmission?

    <p>The process of releasing a neurotransmitter</p> Signup and view all the answers

    What does temporal summation involve?

    <p>Integration of neural signals that occur at different times at the same synapse</p> Signup and view all the answers

    What defines voltage-activated ion channels?

    <p>Ion channels that open and close in response to changes in the level of membrane potential</p> Signup and view all the answers

    What is the process of adding or combining individual signals into one overall signal called?

    <p>Temporal summation</p> Signup and view all the answers

    Which term refers to the integration of signals that occur at different sites on the neuron's membrane?

    <p>Spatial summation</p> Signup and view all the answers

    What defines a brief period (typically 1 to 2 milliseconds) during which it is impossible to elicit another action potential in the same neuron?

    <p>Absolute refractory period</p> Signup and view all the answers

    Which of the following refers to the conduction of an action potential along a myelinated axon from one node of Ranvier to the next?

    <p>Saltatory conduction</p> Signup and view all the answers

    What are small spherical membranes that store neurotransmitter molecules and release them into the synaptic cleft called?

    <p>Synaptic vesicles</p> Signup and view all the answers

    What does neuropeptides refer to?

    <p>Short amino acid chains comprising between 3 and 36 amino acids</p> Signup and view all the answers

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