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 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.
Correct Answer is A
Explanation
A. Bronchi: The bronchi are the main airways that branch off from the trachea and enter each lung. Structure #8 is shown as the large branches that split into the lungs, consistent with the location and appearance of the bronchi.
B. Trachea: The trachea is the main airway above the bronchi, running down the neck before it splits into the left and right bronchi. It is likely labeled as #7 in the diagram.
C. Alveoli: Alveoli are microscopic air sacs at the end of the bronchioles where gas exchange occurs. They are not visibly distinct in this diagram and are located much further down the airway branches than where #8 is labeled.
D. Bronchioles: Bronchioles are the smaller branches that come off the bronchi and lead to the alveoli. They would be located deeper into the lung structure and are smaller than the bronchi seen at label #8.
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