BIO201_MH_V3
Topic 15: Autonomic Nervous System
Started on Friday, September 10, 2021, 10:11 AM
State Finished
Completed on Friday, September
... [Show More] 10, 2021, 10:36 AM
Time taken 24 mins 44 secs
Grade 35.00 out of 35.00 (100%)
Question 1
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The vagus nerve carries parasympathetic impulses to the
Select one:
a. salivary glands.
b. lacrimal glands.
c. smooth muscle of the eyes.
d. thoracic and abdominal viscera.
e. thyroid gland.
Question 2
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Stimulation by the autonomic nervous system results in increased insulin secretion from the
pancreas during and after a meal. The following are most likely to be true.
Select one:
a. increased insulin secretion is due to parasympathetic stimulation
b. acetylcholine agonists will stimulate insulin secretion
c. increased insulin secretion is due to sympathetic stimulation
d. increased insulin secretion is due to adrenergic agonists
e. increased insulin secretion is due to parasympathetic stimulation and acetylcholine
agonists will stimulate insulin secretion
Question 3
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Which of the following occurs when the parasympathetic system is stimulated?
Select one:
a. increased blood pressure
b. increased motility of the digestive tract
c. increased metabolism
d. increased heart rate
e. decreased motility of the digestive tract
Question 4
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Question textThe figure illustrates the autonomic reflexes and the heart. What does "B" represent?
Select one:
a. sympathetic nerveb. increase in blood pressure detected by carotid baroreceptors
c. glossopharyngeal nerve
d. decrease in blood pressure detected by carotid baroreceptors
e. vagus nerve
Question 5
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Which of the following is NOT an effect of parasympathetic action?
Select one:
a. increased tear production
b. increased motility of the intestines
c. increased metabolism
d. increased gastric secretion
Question 6
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When norepinephrine binds to adrenergic receptors,
Select one:
a. Na+ channels open.
b. Ca2+ channels open.
c. adrenaline is released.
d. G proteins mediate the cell's response.e. Na+ channels are closed.
Question 7
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Identify structure "D" on the above diagram.
Select one:
a. autonomic ganglion
b. somatic motor neuron
c. effector organ (smooth muscle of GI tract)
d. postganglionic neuron
e. preganglionic neuron
Question 8
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What part of the brain is in overall control of the ANS?
Select one:
a. medulla oblongata
b. hypothalamus
c. thalamus
d. cerebrum
Question 9
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Match the phrase to either the sympathetic or parasympathetic division of the autonomic
nervous system.
Has greater influence during physical activity
Select one:
a. sympathetic
b. parasympathetic
Question 10
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The two divisions of the ANS have antagonistic effects on each of the following EXCEPT
Select one:
a. the diameter of the blood vessels in skeletal muscles
b. the diameter of bronchioles in the lungs
c. gastrointestinal peristalsis
d. heart rate
e. the eye
Question 11
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Which of the following statements is true?
Select one:
a. The sympathetic division diverges more than the parasympathetic division.
b. Increased parasympathetic activity is consistent with increased physical activity.
c. One division of the ANS is always stimulatory and the other is always inhibitory.
d. Structures receiving both dual autonomic innervation are regulated equally by both
divisions.
e. There is dual innervation of all organs.
Question 12
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Question textMatch the phrase to either the sympathetic or parasympathetic division of the autonomic
nervous system.
Stimulation of this system often activates many effectors at the same time
Select one:
a. sympathetic
b. parasympathetic
Question 13
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Match the phrase to either the sympathetic or parasympathetic division of the autonomic
nervous system.
Can produce widespread sweating
Select one:
a. sympathetic
b. parasympathetic
Question 14
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Match the phrase to either the sympathetic or parasympathetic division of the autonomic
nervous system.
Inhibits heart rate but stimulates contraction of urinary bladderSelect one:
a. sympathetic
b. parasympathetic
Question 15
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Match the phrase to either the sympathetic or parasympathetic division of the autonomic
nervous system.
Craniosacral division
Select one:
a. sympathetic
b. parasympathetic
Question 16
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Parasympathetic ganglia are called ____ ganglia.
Select one:
a. pelvic
b. chain
c. collateral
d. terminal
e. dorsalQuestion 17
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Which of the following is NOT a means of parasympathetic innervation of effectors?
Select one:
a. spinal nerves
b. abdominal nerve plexuses
c. pelvic splanchnic nerves and pelvic nerve plexuses
d. cranial nerves to the head and neck
e. vagus nerve and thoracic nerve plexuses
Question 18
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Question textThe figure illustrates the autonomic reflexes and the heart. What does "C" represent?
Select one:
a. sympathetic nerveb. increase in blood pressure detected by carotid baroreceptors
c. glossopharyngeal nerve
d. decrease in blood pressure detected by carotid baroreceptors
e. vagus nerve
Question 19
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Atropine causes the pupil of the eye to dilate by blocking the effect of muscarinic receptors.
This means atropine is a(n)
Select one:
a. ganglionic blocking agent.
b. beta-adrenergic blocking agent.
c. alpha-adrenergic blocking agent.
d. parasympathetic blocking agent.
e. parasympathomimetic agents.
Question 20
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Which effector has no innervation with parasympathetic nerves?
Select one:
a. eye
b. pancreas
c. heartd. blood vessels [Show Less]