16 Questions
Which nervous system functionally maintains homeostasis and regulates body temperature?
Sympathetic Nervous System
How does the autonomic nervous system differ anatomically from the somatic nervous system?
The ANS controls effectors via a two-neuron chain, while the somatic NS synapses directly onto effectors.
Which division of the autonomic nervous system predominates during resting conditions?
Parasympathetic Nervous System
In a given system, what is the usual relationship between the sympathetic and parasympathetic divisions of the autonomic nervous system?
They usually oppose each other
Where are the preganglionic neuronal cell bodies of the parasympathetic division located?
Brainstem cranial nerve nuclei
Which cranial nerves carry axons of the parasympathetic division?
III, VII, IX, and X
Where are the parasympathetic ganglia located?
In or near the effector organ
Which nerve innervates the viscera of the thorax and most of the abdomen?
Vagus nerve (X)
Which organs receive dual innervation from both sympathetic and parasympathetic divisions?
Heart
Where do afferents carrying homeostatic sensory information generally travel with parasympathetic efferents?
Via the vagus nerve
What causes visceral pain?
Ischemia, distension, inflammation, blood, etc.
Where do afferents carrying visceral pain usually travel with?
Sympathetic efferents
What is the anatomical basis of referred pain?
Overlap with afferents from specific dermatomes
Which division of the autonomic nervous system innervates the trachea?
Both sympathetic and parasympathetic divisions
Where are the autonomic plexuses located?
In autonomic plexuses
Which organ is insensitive to cutting, burning, or freezing?
Viscera
Test your knowledge of the Autonomic Nervous System (ANS) with this quiz. Explore the functions and regulation of the ANS, and enhance your understanding of its role in maintaining homeostasis and controlling bodily functions.
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