Neuroanatomy and Neurophysiology Quiz
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Questions and Answers

What is the function of glial cells?

  • Generating action potentials
  • Supporting and protecting neurons (correct)
  • Inhibiting synaptic activity
  • Conducting synaptic transmission

    • Which neuron type has many dendrites but only one axon?

  •  -motor neuron
  • Interneuron
  • Bipolar neuron (correct)
  • Pseudounipolar neuron

    • What is the main function of the dendritic "tree" in neurons?

  • Generating action potentials
  • Receiving signals from other neurons (correct)
  • Transmitting neurotransmitters
  • Regulating synaptic activity

    • Where do axon terminals interface to communicate with other neurons?

    <p>Synapse</p> Signup and view all the answers

    What is the function of the vagus nerve motor neuron?

    <p>Controlling muscle movement of the visceral organs</p> Signup and view all the answers

    What does the blue color represent in the context of neuron structures?

    <p>Afferent (incoming) neurons</p> Signup and view all the answers

    What type of synapse is primarily inhibitory?

    <p>Axosomatic</p> Signup and view all the answers

    Which cells form a protective insulation layer over axons in the peripheral nervous system?

    <p>Schwann Cells</p> Signup and view all the answers

    What type of channels are specific to sensory neurons and respond to touch, pressure, stretch, temperature, chemicals, and light?

    <p>Modality-gated channels</p> Signup and view all the answers

    Which of the following is a form of cellular learning that involves a persistent strengthening of synapses leading to long-lasting signal transmission between neurons?

    <p>Long-term potentiation (LTP)</p> Signup and view all the answers

    What process involves a synapse becoming more efficient in response to a stimulus?

    <p>Sensitization</p> Signup and view all the answers

    What is the main function of glial cells in the brain?

    <p>Neuron metabolism/nutrition</p> Signup and view all the answers

    What is the primary role of astrocytes in the brain?

    <p>Neuron metabolism/nutrition</p> Signup and view all the answers

    What type of synapse primarily facilitates nerve signal transmission?

    <p>&quot;Axodendritic&quot;</p> Signup and view all the answers

    "Habituation" is an example of which type of learning?

    <p>Non-associative learning</p> Signup and view all the answers

    What is the function of voltage-gated channels?

    <p>They open in response to an electrical potential change on the cell membrane.</p> Signup and view all the answers

    What contributes to faster conduction of nerve impulses?

    <p>Oligodendrocytes</p> Signup and view all the answers

    What is the primary role of Schwann cells in the peripheral nervous system?

    <p>Forming protective insulation layer over axons (myelin)</p> Signup and view all the answers

    What is the specific term for synapses primarily inhibitory and synapse onto the soma or cell body?

    <p>Axosomatic synapses</p> Signup and view all the answers

    Which cells form a protective insulation layer over axons in the peripheral nervous system (PNS), known as Myelin?

    <p>Schwann Cells</p> Signup and view all the answers

    What are the channels that open in response to an electrical potential change on the cell membrane, specifically found at the axon hillock and along the axon?

    <p>Voltage-gated channels</p> Signup and view all the answers

    What is the specific term for short-term, reversible response by a neuron in response to repeated exposure to a stimulus, resulting in synapse becoming less efficient with repeated exposure to a stimulus?

    <p>Habituation</p> Signup and view all the answers

    What type of synapse primarily facilitates nerve signal transmission and synapses onto dendritic “spine”?

    <p>Axodendritic synapse</p> Signup and view all the answers

    What type of learning involves a persistent strengthening of synapses leading to long-lasting signal transmission between neurons?

    <p>Long-term potentiation</p> Signup and view all the answers

    Which neuron type has many dendrites but only one axon?

    <p>Multipolar neuron (cerebellum)</p> Signup and view all the answers

    What is the main function of glial cells in the brain?

    <p>Support and protection of neurons</p> Signup and view all the answers

    What is the specific term for synapses primarily inhibitory and synapse onto the soma or cell body?

    <p>Axo-somatic synapse</p> Signup and view all the answers

    What contributes to faster conduction of nerve impulses?

    <p>Myelination of axons</p> Signup and view all the answers

    What type of synapse primarily synapses onto the soma or cell body?

    <p>Axosomatic</p> Signup and view all the answers

    What contributes to faster conduction of nerve impulses in the peripheral nervous system?

    <p>Schwann cell myelin</p> Signup and view all the answers

    What type of channels open in response to touch, pressure, stretch, temperature, chemicals, and light, specifically found at axon hillock and along the axon?

    <p>Modality-gated channels</p> Signup and view all the answers

    Which cells form a protective insulation layer over axons in the central nervous system?

    <p>Oligodendrocytes</p> Signup and view all the answers

    What is a form of cellular learning that involves a persistent strengthening of synapses leading to long-lasting signal transmission between neurons?

    <p>Long-term potentiation (LTP)</p> Signup and view all the answers

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