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When carbon dioxide bonds to hemoglobin, the compound ______ forms.

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Another word for breathing is ventilation.

A) True
B) False

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The inverse relationship between pressure and volume is known as


A) Dalton's law.
B) Newton's law.
C) Boyle's law.
D) Starlings's law.

E) None of the above
F) All of the above

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The hypoxia associated with high altitude can cause


A) vasodilation of the major arterial blood vessels.
B) vasoconstriction of the pulmonary blood vessels.
C) vasoconstriction of the coronary blood vessels.
D) vasodilation of the major venous blood vessels.

E) A) and B)
F) A) and C)

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In emphysema,


A) pressure in alveoli increases and their walls burst, coalescing them and decreasing the surface area for gas exchange.
B) cells in the bronchial lining divide too fast.
C) tar from cigarettes blackens alveoli.
D) membranes form within alveoli, increasing surface area.

E) A) and C)
F) B) and C)

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The left lung is larger than the right lung and is divided into three lobes.

A) True
B) False

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People who work in factories that package buttered popcorn can develop a disorder caused by inhaling organic dust. This disorder is called


A) emphysema
B) extrinsic allergic alveolitis.
C) berylliosis
D) asbestosis.

E) B) and D)
F) A) and B)

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As the respiratory tube branches become smaller in diameter,


A) they have increased cartilage.
B) they have increased muscle fibers.
C) the epithelial lining changes to connective tissue.
D) the epithelial lining changes from pseudostratified ciliated columnar to cuboidal and simple squamous epithelium.

E) A) and D)
F) C) and D)

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Exposure to secondhand smoke can cause or increase risk of


A) high altitude sickness and sleep apnea.
B) heart disease, lung cancer, and low birth weight.
C) pneumonia and tuberculosis.
D) sarcoidosis, multiple sclerosis, and vasculitis

E) C) and D)
F) A) and B)

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Carbon dioxide is sometimes added to the air that a patient breathes in order to


A) increase the rate and decrease the depth of breathing.
B) increase the rate and depth of breathing.
C) decrease the rate and increase the depth of breathing.
D) decrease the rate and depth of breathing.

E) A) and D)
F) None of the above

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Which of the following proteins transports some carbon dioxide in the blood?


A) Hemoglobin
B) Carbonic anhydrase
C) Heme
D) Albumin

E) None of the above
F) A) and B)

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The respiratory membrane consists of


A) a single thickness of epithelial cells.
B) a single thickness of epithelial cells and a basement membrane.
C) two thicknesses of epithelial cells.
D) two thicknesses of epithelial cells and basement membranes.

E) C) and D)
F) A) and D)

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The force that moves air into the lungs during inspiration comes from the


A) diaphragm.
B) external intercostal muscles.
C) abdominal wall muscles.
D) atmospheric pressure.

E) A) and B)
F) All of the above

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The volume of air that enters (or leaves) during a single respiratory cycle is the


A) inspiratory reserve volume.
B) vital capacity.
C) tidal volume.
D) expiratory reserve volume.

E) All of the above
F) A) and B)

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The pitch of a vocal sound is controlled by changing the


A) force of the air passing over the vocal cords.
B) tension on the vocal cords.
C) size of the laryngeal cartilages.
D) shape of the laryngeal cartilages.

E) B) and D)
F) A) and B)

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A sudden contraction of the diaphragm while the glottis is closed produces a sneeze.

A) True
B) False

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Globin is


A) another term for alveolus.
B) a fat that carries oxygen in the blood.
C) a form of surfactant.
D) the protein part of hemoglobin, which carries oxygen in the blood.

E) A) and D)
F) A) and C)

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A sudden inspiration caused by a spasmodic contraction of the diaphragm while the glottis is closed is a


A) yawn.
B) laugh.
C) sneeze.
D) hiccup.

E) C) and D)
F) B) and D)

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Atelectasis is


A) a collapsed bronchial tube.
B) a deviated septum.
C) a collapsed lung.
D) a shrunken liver.

E) None of the above
F) A) and D)

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The intensity (volume) of a vocal sound is a result of the


A) force of air passing over the vocal cords.
B) tension on the vocal cords.
C) size of the laryngeal cartilage.
D) shape of the laryngeal cartilage.

E) A) and B)
F) A) and D)

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