The respiratory mucosa consists of
A) epithelium and underlying layer of areolar tissue.
B) dense irregular connective and adipose tissue.
C) ciliated stratified squamous and columnar cells.
D) fibrocartilage and mucous cells.
E) dense regular connective and areolar tissue.
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Question 2) Drugs known as beta-blockers may be useful for treating
A) constipation.
B) diarrhea.
C) excessive salivation.
D) excessive heart rate.
E) prostate disorders.
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Question 3) The larynx, trachea, bronchi, and bronchioles all make up the
A) upper respiratory tract.
B) lower respiratory tract.
C) internal respiratory tract.
D) alveoli of the respiratory tract.
E) respiratory mucosa.
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Question 4) Drugs that have effects similar to those of sympathetic activation are called sympathomimetic drugs. Which of the following would you not expect to observe in a person who has taken a sympathomimetic drug?
A) sweating
B) increased heart rate
C) dilation of respiratory passages
D) decreased blood pressure
E) increased blood sugar level
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Question 5) The respiratory epithelium of the conducting airways consists of
A) pseudostratified ciliated columnar epithelium.
B) moist cuboidal epithelium.
C) simple squamous epithelium.
D) ciliated squamous epithelium.
E) stratified squamous epithelium.
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Question 6) Tom suffers from hypertension (high blood pressure). Which of the following might help deal with his problem?
A) a drug that blocks alpha-1 receptors in smooth muscle
B) a drug that blocks alpha-2 receptors in adipose tissue
C) a drug that increases cAMP levels in cardiac muscle tissue
D) a drug that blocks beta receptors in cardiac muscle tissue
E) a drug that blocks alpha-1 receptors in smooth muscle and blocks beta receptors in cardiac muscle tissue
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Question 7) The nasal cavity, pharynx, and larynx constitute the ________ portion of the airway.
A) conducting
B) exchange
C) respiratory
D) sinus
E) primary
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Question 8) As the result of an accident, the white rami communicantes of spinal nerves T1 and T2 on the left side of Brad's body are severed. What organ(s) would you expect to be affected by this injury?
A) left pupil
B) right pupil
C) heart
D) both pupils
E) left pupil and heart
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Question 9) Changes in the immune system that accompany aging include all of the following except
A) T cells becoming less responsive to antigens.
B) fewer cytotoxic T cells responding to infections.
C) decreased numbers of T helper cells.
D) more efficient secondary responses.
E) B cells are less responsive.
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Question 10) Each of the following effects is associated with the action of postganglionic sympathetic fibers except
A) increased sweat secretion.
B) reduced circulation to the skin.
C) decreased heart rate.
D) dilation of the pupils.
E) increased blood flow to skeletal muscles.
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