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

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

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

Which cranial nerves carry axons of the parasympathetic division?

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

Where are the parasympathetic ganglia located?

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

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

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

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

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

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

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

What causes visceral pain?

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

Where do afferents carrying visceral pain usually travel with?

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

What is the anatomical basis of referred pain?

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

Which division of the autonomic nervous system innervates the trachea?

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

Where are the autonomic plexuses located?

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

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

<p>Viscera (D)</p> Signup and view all the answers

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