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1 | |
Which of the following is not an effector (target organ) of impulses generated by motor neurons of the autonomic nervous system (ANS)? (p. 218) |
| | A) | cardiac muscle |
| | B) | exocrine glands |
| | C) | skeletal muscle |
| | D) | endocrine glands |
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2 | |
Somatic motor neurons have cell bodies located ____ the CNS that project axons only to ____; and are usually under ____ control. (p. 218) |
| | A) | outside; skeletal muscle; involuntary |
| | B) | inside; the viscera; voluntary |
| | C) | inside; the viscera; involuntary |
| | D) | inside; skeletal muscle; voluntary |
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3 | |
Which of the following statements does not describe denervation hypersensitivity? (p. 219) |
| | A) | autonomic target tissues become more sensitive than normal to stimulating agents |
| | B) | skeletal muscle effectors enter a state of flaccid paralysis and atrophy |
| | C) | can result from severing (cutting) autonomic motor neurons |
| | D) | an example is restoring the secretion of acid from the stomach following vagotomy (severing the vagus nerve) |
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4 | |
Which statement regarding autonomic sympathetic neurons is false? (p. 220) |
| | A) | They are usually activated as a single unit (mass activation). |
| | B) | They emerge from the brain and sacral regions. |
| | C) | They form white rami communicantes fibers. |
| | D) | They may have ganglia located along the spinal cord. |
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5 | |
Which of the following ganglia is not a collateral (prevertebral) ganglion? (p. 221) |
| | A) | celiac |
| | B) | superior mesenteric |
| | C) | inferior mesenteric |
| | D) | cervical |
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6 | |
Which system is not served by postganglionic fibers that arise from the collateral (prevertebral) ganglia? (p. 221) |
| | A) | respiratory |
| | B) | digestive |
| | C) | urinary |
| | D) | reproductive |
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7 | |
Which of the following statements about parasympathetic neurons is false? (p. 221) |
| | A) | Like sympathetics, they travel within spinal nerves. |
| | B) | They synapse in terminal ganglia, either next to or within the organs innervated. |
| | C) | They originate in the brain or sacral spinal cord regions (the craniosacral division). |
| | D) | Postganglionic fibers are usually shorter than those of sympathetic neurons. |
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8 | |
Which of the following cranial nerves does not contain preganglionic parasympathetic fibers?(p. 222) |
| | A) | oculomotor (III) |
| | B) | facial (VII) |
| | C) | optic (II) |
| | D) | glossopharyngeal (IX) |
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9 | |
The very long, "vagrant," or "wandering," cranial nerve that originates from nuclei in the medulla oblongata and projects preganglionic fibers through the neck to the thoracic and abdominal cavities, is the _____ nerve. (p. 223) |
| | A) | optic (II) |
| | B) | oculomotor (III) |
| | C) | facial (VII) |
| | D) | vagus (X) |
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10 | |
Which neuron does not release the neurotransmitter, acetylcholine (ACh)? (p. 228) |
| | A) | preganglionic sympathetic fibers |
| | B) | postganglionic sympathetic fibers |
| | C) | preganglionic parasympathetic fibers |
| | D) | postganglionic parasympathetic fibers |
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11 | |
Catecholamines, which are derived from the amino acid, tyrosine, and are considered to serve as both hormones and neurotransmitters, include all of the following except (p. 226) |
| | A) | acetylcholine (ACh) |
| | B) | epinephrine |
| | C) | dopamine |
| | D) | norepinephrine |
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12 | |
Which of the following is not a β-adrenergic response? (p. 228) |
| | A) | inhibition (relaxation) of the digestive tract muscular motility, such as peristalsis |
| | B) | opening (dilation) of the airways or bronchioles in the lung |
| | C) | increasing the force and rate of the heart beat |
| | D) | dilating the smooth muscle of blood vessels in the skin and intestinal area |
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13 | |
The drug muscarine, derived from some poisonous mushrooms stimulates all of the following cholinergic receptors, except those receptors in the (p. 230) |
| | A) | heart. |
| | B) | neuromuscular junction of skeletal muscle fibers. |
| | C) | digestive system. |
| | D) | most target organs of postganglionic parasympathetic nerve fibers. |
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14 | |
The drug that should aid the suffering of asthmatics by serving as a selective β2 agonist, resulting in dilation of the airways in the lung, is (p. 229) |
| | A) | Terbutaline |
| | B) | atenolol |
| | C) | phenylephrine |
| | D) | clonidine |
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15 | |
Which statement about muscarinic receptors is false? (p. 230) |
| | A) | They are not found in the autonomic ganglia or at the neuromuscular junctions of skeletal muscle fibers. |
| | B) | They are stimulated by extracts from certain poisonous mushrooms. |
| | C) | They are subtypes of adrenergic receptors. |
| | D) | They are not affected by the drug, curare, which specifically blocks nicotinic receptors. |
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16 | |
All of the following molecules are considered "nonadrenergic noncholinergic" neurotransmitters produced by postganglionic autonomic axons, except? (p. 230) |
| | A) | adenosine triphosphate (ATP) |
| | B) | acetylcholine (ACh) |
| | C) | vasoactive intestinal peptide (VIP) |
| | D) | nitric oxide (NO) |
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17 | |
The separate effects of sympathetic and parasympathetic innervation of the pacemaker region of the heart can best be described as (p. 231) |
| | A) | antagonistic |
| | B) | complementary |
| | C) | cooperative |
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18 | |
The effects of sympathetic and parasympathetic innervation on the urinary and reproductive systems, causing the male erection and ejaculation for example, are called (p. 231) |
| | A) | antagonistic |
| | B) | complementary |
| | C) | cooperative |
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19 | |
The effects of sympathetic and parasympathetic stimulation of the salivary glands, producing a thicker, more viscous saliva, are called (p. 231) |
| | A) | antagonistic |
| | B) | complementary |
| | C) | cooperative |
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20 | |
Which of the following target tissues is innervated by neurons from both the sympathetic and parasympathetic nervous system? (p. 232) |
| | A) | adrenal medulla |
| | B) | arrector pili muscle |
| | C) | sweat glands |
| | D) | pupil of the eye |
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21 | |
The brain area that most directly controls the activity of the autonomic nervous system, is the(p. 232) |
| | A) | medulla oblongata |
| | B) | pituitary gland |
| | C) | cerebellum |
| | D) | hypothalamus |
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22 | |
Which system is not controlled by an autonomic nerve center in the medulla oblongata? (p. 232) |
| | A) | cardiovascular |
| | B) | respiratory |
| | C) | immune |
| | D) | digestive |
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23 | |
The hypothalamus does not contain a control center for the homeostatic regulation of (p. 233) |
| | A) | body temperature |
| | B) | various emotional states |
| | C) | urinary bladder reflexes |
| | D) | eating |
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2002 McGraw-Hill Higher Education