Which of the following is concerned with the exchange of the respiratory gases?
Lungs
Bronchi
Alveoli
Trachea
The Correct Answer is C
A. Lungs: lungs house alveoli but are not the site of gas exchange themselves.
B. Bronchi: they conduct air but don’t exchange gases.
C. Alveoli: this is the primary site where oxygen and carbon dioxide are exchanged.
D. Trachea: it’s a passageway for air, not a site for gas exchange.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. It is difficult to keep the alveoli open- surfactant reduces alveolar surface tension; without it, alveoli collapse (atelectasis).
B. Bronchioles relax- not directly related to surfactant.
C. The alveoli fill with water- surfactant prevents collapse, not water entry.
D. Air enters the intrapleural space- this would cause a pneumothorax, unrelated to surfactant function.
Correct Answer is C
Explanation
A. Inferior/lower right lobe: Label #11 is on the right lung (viewer’s left side) and in the lower portion. This location corresponds to the inferior (lower) lobe of the right lung.
B. Superior/upper right lobe: this is labelled as #1.
C. Middle lobe: the right lung has three lobes: superior, middle, and inferior.
D. Superior/upper left lobe: this is labelled as #6.
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