Which of the following are part of the upper respiratory system? (Select all that apply)
Pharynx
Nasal cavity
Bronchial tree
Larynx
Trachea
Correct Answer : A,B,D
A. Pharynx: The pharynx (throat) is part of the upper respiratory tract and functions as a passageway for both air and food.
B. Nasal cavity: The nasal cavity is the main entryway for inhaled air and is part of the upper respiratory system.
C. Bronchial tree: The bronchial tree is part of the lower respiratory system, beginning with the bronchi and branching into bronchioles.
D. Larynx: The larynx (voice box) is part of the upper respiratory system; it connects the pharynx to the trachea.
E. Trachea: The trachea (windpipe) is part of the lower respiratory system.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Decreased efficiency of the respiratory muscles: Affects ventilation but not directly related to infection susceptibility.
B. Loss of elasticity of the lung tissue: Affects gas exchange but doesn't impair immune defense.
C. The phagocytes in the lungs become less effective: Correct; weakened immune response increases infection risk.
D. Number of alveoli decreases: Affects surface area for gas exchange, not immune function.
Correct Answer is C
Explanation
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.
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