A) their effectors
B) target organ responses to their neurotransmitters
C) regulation of activity by higher brain centers
D) their efferent pathways and ganglia
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A) visceral arcs contain two sensory neurons
B) somatic arcs contain one additional component that visceral arcs do not possess
C) visceral arcs do not use integration centers
D) visceral arcs involve two motor neurons
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The preganglionic and postganglionic neu...View Answer
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A) allowing the body to cope with an external threat
B) raising blood glucose levels
C) lens accommodation for close vision
D) a stimulation of heart rate and force of contraction
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A) preganglionic fibers are short
B) inactivation of ACh is fairly slow
C) NE and epinephrine are secreted into the blood as part of the sympathetic response
D) preganglionic fibers are long
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A) pulmonary
B) esophageal
C) cardiac
D) inferior hypogastric
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A) somatic nervous system
B) parasympathetic division
C) cerebrum
D) sympathetic division
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A) decrease heart rate and blood pressure
B) have widespread sympathetic effects
C) increase a dangerously low heart rate
D) are potent antidepressants
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A) submandibular ganglion
B) ciliary ganglion
C) pterygopalatine ganglion
D) otic ganglion
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A) all postganglionic neurons (cell bodies and dendrites)
B) adrenal medulla hormone producing cells
C) sarcolemma of skeletal muscle cells at neuromuscular junctions
D) all parasympathetic target organs
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A) those that synapse with parasympathetic fibers
B) those that pass through the trunk ganglion to synapse in collateral or prevertebral ganglia
C) those that synapse with somatic fibers
D) those that synapse in the same trunk ganglion they entered
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A) is frequently life threatening
B) is induced by heat stress
C) occurs primarily in association with injury to the spinal cord
D) is characterized by exaggerated vasoconstriction in the extremities
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A) small intestine
B) kidney
C) sweat glands
D) coronary blood vessels
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A) the cell bodies of motor neurons
B) both somatic afferent and efferent neurons
C) synapses between postganglionic fibers and their effectors
D) an outer connective tissue capsule around the cell bodies of preganglionic motor neurons
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A) increased blood glucose,decreased GI peristalsis,and increased heart rate and blood pressure
B) decreased blood glucose,increased GI peristalsis,and increased heart rate and blood pressure
C) increased blood glucose,increased GI peristalsis,and decreased heart rate and blood pressure
D) decreased blood glucose,increased GI peristalsis,and decreased heart rate and blood pressure
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A) sympathetic preganglionic fibers; release ACh
B) parasympathetic preganglionic fibers; release ACh
C) parasympathetic postganglionic fibers; release NE
D) sympathetic postganglionic fibers; release NE
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