Autonomic Nervous System Quiz
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Questions and Answers

Which nervous system functionally maintains homeostasis and regulates body temperature?

  • Central Nervous System
  • Parasympathetic Nervous System
  • Sympathetic Nervous System (correct)
  • Somatic Nervous System
  • How does the autonomic nervous system differ anatomically from the somatic nervous system?

  • The ANS and somatic NS both control effectors via a two-neuron chain.
  • The ANS and somatic NS both synapse directly onto effectors.
  • The ANS controls effectors via a two-neuron chain, while the somatic NS synapses directly onto effectors. (correct)
  • The ANS synapses directly onto effectors, while the somatic NS controls effectors via a two-neuron chain.
  • Which division of the autonomic nervous system predominates during resting conditions?

  • Central Nervous System
  • Somatic Nervous System
  • Parasympathetic Nervous System (correct)
  • Sympathetic Nervous System
  • In a given system, what is the usual relationship between the sympathetic and parasympathetic divisions of the autonomic nervous system?

    <p>They usually oppose each other</p> Signup and view all the answers

    Where are the preganglionic neuronal cell bodies of the parasympathetic division located?

    <p>Brainstem cranial nerve nuclei</p> Signup and view all the answers

    Which cranial nerves carry axons of the parasympathetic division?

    <p>III, VII, IX, and X</p> Signup and view all the answers

    Where are the parasympathetic ganglia located?

    <p>In or near the effector organ</p> Signup and view all the answers

    Which nerve innervates the viscera of the thorax and most of the abdomen?

    <p>Vagus nerve (X)</p> Signup and view all the answers

    Which organs receive dual innervation from both sympathetic and parasympathetic divisions?

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

    Where do afferents carrying homeostatic sensory information generally travel with parasympathetic efferents?

    <p>Via the vagus nerve</p> Signup and view all the answers

    What causes visceral pain?

    <p>Ischemia, distension, inflammation, blood, etc.</p> Signup and view all the answers

    Where do afferents carrying visceral pain usually travel with?

    <p>Sympathetic efferents</p> Signup and view all the answers

    What is the anatomical basis of referred pain?

    <p>Overlap with afferents from specific dermatomes</p> Signup and view all the answers

    Which division of the autonomic nervous system innervates the trachea?

    <p>Both sympathetic and parasympathetic divisions</p> Signup and view all the answers

    Where are the autonomic plexuses located?

    <p>In autonomic plexuses</p> Signup and view all the answers

    Which organ is insensitive to cutting, burning, or freezing?

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

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