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25 Cards in this Set
- Front
- Back
The alveoli are formed of delicate elastic membranes covered by an extensive capillary network of the "systemic" circulation.
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False, pulmonary
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The normal route by which air enters the respiratory system is the "mouth."
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False, nose
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Openings from the nasal cavities called "sinuses" extend into several bones of the skull.
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True
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The air is warmed, moistened, and filtered as it passes through the "mouth."
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False, nose
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The condition known as allergic rhinitis is often refered to as "asthma."
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False, hay fever
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The Eustachian tubes are used to equalize the air pressure between the nasopharynx and "inner ear."
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False, middle ear
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At its distal end, the pharynx branches into two tubes called the "esophagus" and the larynx.
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True
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The largest cartilage of the larynx is the "cricoid cartilage," also known as the Adam's apple.
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False, thyroid cartilage
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The vocal chords, which function in the production of sound, are located within the "trachea."
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False, larynx
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The trachea is held open by a series of C-shaped rings of "bone" stacked upon one another.
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False, cartilage
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The bronchioles are composed entirely of "skeletal" muscle supported by connective tissue.
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False, smooth
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The two-layer membrane that surrounds each lung is known as the "peritoneum."
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False, pleura
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The bronchus that is slightly larger and more vertical is the "left" bronchus.
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False, right
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Expansion of the lungs is due in part to contractions taking place in the "diaphragm" muscle.
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True
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The expansion of the lungs increases the volume of the lungs and "raises" the air pressure within the lungs.
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False, lowers
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During the process of expiration, the respiratory muscles undergo "contraction," and the thoracic returns to its original shape.
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False, relaxation
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The resting tidal volume of the lungs during a normal breath is about "500 mL" of air.
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True
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The "vital capacity" is the largest volume of air that can be expired from the lungs after a forceful inspiration.
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True
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The respiratory control center for the lungs is located in a portion of the "heart."
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False, brain
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An increase of carbon dioxide in the blood causes a corresponding "decrease" in the concentraion of hydrogen ions.
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False, increase
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Nerve impulses originating in the "cerebellum" can override the activity of the respiratory center in regulating breathing.
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False, cerebral cortex
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The "least" amount of carbon dioxide is transported in the blood as bicarbonate ions.
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False, most
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The passive process known as "osmosis" accounts for the movement of oxygen and carbon dioxide gas across the capillary membranes of alveoli.
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False, diffusion
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For transport to the body's cells, oxygen molecules bind loosely to "hemoglobin" molecules contained in red blood cells.
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True
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As they leave the area of the alveoli, capillaries join together to form pulmonary "venules."
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True
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