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Chapter 14 Autonomic Nervous System - Marieb

Terms in this set (57)

E.
Myelin Sheath
A
ANS preganglionic neuron (cell body)
C
ANS postganglionic neuron (cell body
B
Intrinsic ganglionic cell
C
Nonmyelinated nerve
A. Sympathetic
Match
A.Sympathetic
B.Parasympathetic

Short preganglionic, long postganglionic fibers
A.Sympathetic
Match
A.Sympathetic
B.Parasympathetic

Collateral Ganglia
A.Sympathetic
Match
A.Sympathetic
B.Parasympathetic

Increases blood pressure
B.Parasympathetic
Match
A.Sympathetic
B.Parasympathetic

Decreases heart rate
B.Parasympathetic
Match
A.Sympathetic
B.Parasympathetic

Causes erection of penis
B.Parasympathetic
Match
A.Sympathetic
B.Parasympathetic

Stimulates ciliary muscles of the eye
B.Parasympathetic
Match
A.Sympathetic
B.Parasympathetic

Active after you have eaten a meal
A.ACh
Match
A.Acetylcholine (ACh)
B.Norepinephrine (NE)

Preganglionic sympathetic
A.ACh
Match
A.Acetylcholine (ACh)
B.Norepinephrine (NE)

Preganglionic parasympathetic
A.ACh
Match
A.Acetylcholine (ACh)
B.Norepinephrine (NE)

Postganglionic sympathetic to sweat glands
A.ACh
Match
A.Acetylcholine (ACh)
B.Norepinephrine (NE)

Postganglionic parasympathetic
B.NE
Match
A.Acetylcholine (ACh)
B.Norepinephrine (NE)

Most postganglionic sympathetic
B.sympathetic stimulation
The secretions of the adrenal medulla act to supplement the effects of ____.
A.parasympathetic innervation
B.sympathetic stimulation
C.vagus nerve activity
D.neurosecretory substances
A.has 2 efferent neurons
In contrast to the somatic nervous system, the autonomic nervous system _____.
A.has 2 efferent neurons
B.has 2 afferent neurons
C.stimulates its effector cells
D.has both afferent and efferent fibers
A.sympathetic nervous system
Preparing the body for the 'fight or flight' response is the role of the ____.
A.sympathetic nervous system
B.cerebrum
C.parasympathetic nervous system
D.somatic nervous system
A.organs and short postganglionic fibers
The parasympathetic nervous system is characterized by peripheral ganglia near the ____
A.organs and by short postgagnlionic fibers
B.organs and by long postganglionic fibers
C.spinal cord and by short postganglionic fibers
D.spinal cord and by long postganglionic fibers
D.beta-blocker
A drug that might be used specifically to reduce heart rate in cardiac patients could be _____
A.anticholinesterase
B.epinephrine
C.norepinephrine
D.a beta-blocker
A.siliary ganglion
The parasympathetic ganglion that serves the eye is the ____
A.ciliary ganglion
B.pterygopalatine ganglion
C.submandibular ganglion
D.otic ganglion
D.dilation of the blood vessels serving the skin and digestive viscera
Cardiovascular effects of the sympathetic division include all except ____.
A.constriction of most blood vessels
B.dilation of the vessels serving the skeletal muscles
C.increase of heart rate and force
D.dilation of the blood vessels serving the skin and digestive viscera
C.X
Over 90% of all parasympathetic fibers are derived from cranial nerve number_____
A.V
B.VII
C.X
D.XII
A.parasympathetic
The 'resting and digesting' division of the autonomic nervous system is the _____
A.parasympathetic division
B.sympathetic division
C.somatic division
D.peripheral nervous system
C.Hypothalamus
Control of temperature, endocrine activity, and thirst are functions associated with the ____
A.Medulla
B.Cerebellum
C.Hypothalamus
D.Thalamus
C.skeletal
Which one of these effectors is not directly controlled by the autonomic nervous system?
A.Smooth muscle
B.Cardiac muscle
C.skeletal muscle
D.most glands
B.dilation of the pupils
Which of the following is not a result of parasympathetic stimulation?
A.salivation
B.dilation of the pupils
C.increased peristalsis of the digestive viscera
D.relaxation of the urethral sphincter
D.brain stem and sacral region of the cord
The site of origin of the preganglionic fibers of the parasympathetic nervous system is the ___
A.thoracolumbar region of the spinal cord
B.higher brain centers
C.sympathetic chain
D.brain stem and the sacral region of the cord
B.single preganglionic axons make multiple synapses with ganglionic neurons
Sympathetic responses generally are widespread because _____
A.inactivation of ACh is fairly slow
B.single preganglionic axons make multiple synapses with ganglionic neurons
C.preganglionic fibers are short
D.preganglionic fibers are long
D.first thoracic
Sympathetic nerves may leave the spinal cord at which vertebrae?
A.Second cervical
B.Third lumbar
C.First Coccyx
D.First thoracic
C.Cell bodies of motor neurons
Autonomic ganglia contain ____
A.an outer connective tissue capsule around the cell bodies of preganglionic motor neurons
B.synapses between postganglionic fibers and their effectors
C.The cell bodies of motor neurons
D.Both somatic afferent and efferent neurons
B.Oculomotor
The parasympathetic fibers of the ____ nerves innervate smooth muscles of the lens of the eye, the muscles that cause the eye to bulge to accommodate close vision.
A.Optic
B.Oculomotor
C.Trochlear
D.Abducens
D.Splanchnic nerves
Fibers that enter and leave the sympathetic chain without synapsing form structures called ______
A.White rami communicantes
B.Gray rami communicants
C.Spinal nerves
D.Splanchnic nerves
C.celiac
Which is not a plexus of the vagus nerve?
A.cardiac
B.pulmonary
C.celieac
D.esophageal
C.visceral arcs involve two motor neurons
Visceral reflex arcs differ from somatic in that _____
A.visceral arcs contain two sensory neurons
B.somatic arcs contain one additional componenet that visceral arcs do NOT possess
C.visceral arcs involve two motor neurons
D.visceral arcs do not use integration centers
C.determines normal activity of the urinary tract
The parasympathetic tone ____
A.prevents unnecessary heart deceleration
B.accelerates activity of the digestive tract
C.determines normal activity of the urinary tract
D.causes blood pressure to rise
D.is directly controlled by the reticular formation of the brain stem
The autonomic nervous system____
A.cannot be self-controlled
B.has one primary division
C.is not affected by drugs
D.is directly controlled by the reticular formation of the brain stem
C.carry preganglionic axons to the sympathetic chain
The white rami ____
A.are found only in the C1-T1 cord segments
B.are unmyelinated
C.carry preganglionic axons to the sympathetic chain
D.carry postganglionic fibers to the periphery
B.attach mainly to the B1 receptors of cardiac muscle
Beta-blockers_____
A.increase a dangerously low heart rate
B.attach mainly to the Beta1 receptors of cardiac muscle
C.have widespread sympathetic effects
D.are potent antidepressants
B.is primarily under parasympathetic control
Erection of the penis or clitoris ____
A.is primarily under sympathetic control
B.is primarily under parasympathetic control
C.is the result of coordinated activation by both sympathetic & parasympathetic input
D.depends very little on autonomic activiation
D.body temperature
Which is a uniquely sympathetic function?
A.Regulation of pupil size
B.Regulation of cardiac rate
C.Regulation of respiratory rate
D.regulation of body temperature
A.exaggerated vasoconstriction in extremities
Raynaud's disease ______
A.is characterized by exaggerated vasoconstriction in the extremities
B.is induced by heat stress
C.occurs primarily in association with injury to the spinal cord
D.is frequently life-threateninig
B.represents a return of reflex activity with no controls from higher centers
The mass reflex reaction _____
A.is also known as autonomic areflexia
B.represents a return of reflex activity with no controls from higher centers
C.usually precedes spinal shock
D.results from overexcitatory input from the cortex
D.The distal portion of the large intestine fails to develop parasympathetic innervation
In congenital megacolon (Hirschsprung's disease) _____
A.sympathetic innervation of a segment of the colon fails to develop
B.feces are forced out of the colon prematurely
C.medication usually returns the abnormal segment of the colon to normal
D.the distal portion of the large intestine fails to develop parasympathetic innervation
A.clogging of preganglionic axon terminals with filaments
In aging, autonomic inefficiency is often due to ____
A.clogging of preganglionic axon terminals with filaments
B.cerebral hemorrhage
C.major loss of axons
D.peripheral vascular changes
D.thoracolumbar region, and the postganglionic fibers secrete norepinephrine
Sympathetic fibers leave the spinal cord in the____
A.craniosacral regions, and the postganglionic fibers secrete norepinephrine
B.thoracolumbar region, and the postganglionic fibers secrete acetylcholine
C.crainosacral region, and the postganglionic fibers secrete acetylcholine
D.thoracolumbar region, and the postganglionic fibers secrete norepinephrine
D.Tenth cranial nerve
The smooth muscle of the digestive viscera is served largely by the _____
A.lumbar splanchnic nerves
B.cephalic plexus
C.pelvic nerves
D.tenth cranial nerve
D. armpit
Where would you NOT find an autonomic ganglion?
A.in the head
B.in the cervical region
C.close to the visceral effectors they serve
D.in the armpit
C. > blood glucose, < GI peristalsis & > heart rate and blood pressure
Sympathetic division stimulation causes____
A.< blood glucose, > GI peristalsis & > heart rate and blood pressure
B. > blood glucose, > GI peristalsis & < heart rate and blood pressure
C. > blood glucose, < GI peristalsis & > heart rate and blood pressure
D. < blood glucose, > GI peristalsis & <d heart rate and blood pressure
C.vagus nerve
The route of major parasympathetic outflow from the head is the _____k
A.Sympathetic trunk
B.phrenic nerve
C.vagus nerve
D.sacral nerve
C.constriction of bronchioles
Parasympathetic functions include____
A.a stimulation of the heart rate and force of contraction
B.allowing the body to cope with an external threat
C.constriction of the bronchioles
D.mobilizing storage energy sources
D. the same transmitter as the one released by the parasympathetic postganglionic axons
All preganglionic axons of the autonomic nervous system release ______
A.dopamine
B.seratonin
C.the same transmitter as the only one released by the sympathetic postganglionic axons
D.the same transmitter as the one released by the parasympathetic postganglionic axons
B.hypothalamus
Emotions influence autonomic reactions primarily through integration in the _____
A.lateral horn of the spinal cord
B.hypothalamus
C.lateral geniculate of the thalamus
D.inferior colliculus
C.biofeedback
The possibility of control over autonomic responses is demonstrated by _____
A.split brain studies
B.stress-induced hypertension
C.biofeedback
D.nightmares
C.parotid gland
The vagus nerve does NOT innervate the _____
A.pancreas
B.kidneys
C.parotid gland
D.gallbladder
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