Inhaled air is first warmed and moistened by the:
Pharynx
Larynx
Nostrils/nares
Alveoli
The Correct Answer is C
A. Pharynx: Transports air but is not primarily responsible for warming/moistening.
B. Larynx: Functions in voice production and airway protection.
C. Nostrils/nares: Correct; nasal passages warm, moisten, and filter the air.
D. Alveoli: Site of gas exchange, not air conditioning.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Due to contraction of the trapezius muscle: Not involved in normal breathing.
B. Referred to as ventilation (breathing): Correct; ventilation is the process of moving air in and out of the lungs.
C. Due to relaxation of the diaphragm and intercostal muscles: Only exhalation is passive due to relaxation.
D. Caused by contraction and relaxation of the bronchiolar smooth muscle: Regulates airflow, not breathing movements.
Correct Answer is ["A","C","D"]
Explanation
A. Trachea: The trachea is the beginning of the lower respiratory tract and conducts air to the bronchi.
B. Pharynx: The pharynx is part of the upper respiratory system.
C. Lungs: The lungs are the primary organs of the lower respiratory tract responsible for gas exchange.
D. Bronchial tree: The bronchial tree, including bronchi and bronchioles, is part of the lower respiratory system.
E. Larynx: The larynx is the uppermost structure of the lower respiratory system in some classifications but is more commonly considered part of the upper respiratory tract.
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