Inhalation and exhalation are:
Due to contraction of the trapezius muscle
Referred to as ventilation (breathing)
Due to relaxation of the diaphragm and the intercostals muscles
Caused by contraction and relaxation of the bronchiolar smooth muscle
The Correct Answer is B
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Refer to breathing rates: Bradypnea = slow breathing; tachypnea = rapid breathing. Both describe respiratory rates.
B. Are respiratory changes caused by exercise: Tachypnea may occur with exercise, but bradypnea does not.
C. Are upper respiratory infections: These are breathing patterns, not infections.
D. Are relieved by sitting upright: This describes orthopnea, not bradypnea/tachypnea.
Correct Answer is ["A","B","D"]
Explanation
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.
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