Anatomy Chapter 15 Quiz – Flashcards
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The general visceral motor division of the peripheral nervous system describes the
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• Autonomic nervous system
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Which of these characteristics definitively distinguishes the autonomic nervous system from the somatic nervous system?
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• Cell bodies outside the CNS
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Cell bodies of the preganglionic sympathetic neurons are located within the
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• Lateral gray horns of the spinal cord.
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Division of the ANS responsible for the flight or fight response describes the
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• Sympathetic system
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Division of the ANS most active when the body is at rest describes the
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• Parasympathetic division
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A class of preganglionic fibers present in both sympathetic and parasympathetic divisions.
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• Cholinergic
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Sacral nerves carrying parasympathetic innervation to the pelvic organs.
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• Pelvic splanchnic nerves
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Which of the following cranial nerves does NOT supply parasympathetic fibers to the head?
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• Vagus
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Only about half a dozen parasympathetic ganglia have specific names. Two of these are the
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• Ciliary and pterygopalatine
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The site of origin of the preganglionic fibers of the parasympathetic nervous system is the
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• Brain stem and the sacral region of the cord
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In which autonomic division do nerve cell bodies lie closest to the organs being innervated?
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• Parasympathetic
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Parasympathetic ganglia that are located within the walls of the innervated organs are called
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• Intramural ganglia
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The cell bodies of postganglionic neurons that stimulate secretion of the parotid gland are in the
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• Otic ganglion
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What is the effect of parasympathetic stimulation of respiratory bronchioles in the lungs?
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• Constriction
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Postganglionic sympathetic fibers are relatively long compared to those of the parasympathetic division
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• True
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Adrenergic postganglionic neurons release the hormones norepinephrine and epinephrine
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• True
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Which letter indicates the celiac ganglion and plexus?
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• C
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Short nerve branches that connect the ventral rami of spinal nerves to the sympathetic ganglia.
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• Rami communicantes
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The gray and white rami communicantes attach to the
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• Ventral rami
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The sympathetic system causes
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• Increased blood glucose, heart rate, and blood pressure, and decreased peristalsis.
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Identify the pathway that correctly traces the movement of preganglionic sympathetic fibers.
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• Ventral root to white ramus communicans to sympathetic trunk ganglion
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Cardiovascular effects of the sympathetic division include all of the following except
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• Dilation of the blood vessels serving the skin and digestive vicera.
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The cardiac center of the medulla oblongata regulates the diameter of blood vessels.
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• False
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Three-neuron reflex arcs that exist entirely within the walls of the digestive tract.
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• Enteric nervous system
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The overall integrating center for the ANS.
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• Hypothalamus
