Using the provided diagram, identify the structure labeled as #3.
Bronchial tree
Bronchioles
Alveoli
Bronchi
The Correct Answer is D
A. Bronchial tree: The bronchial tree refers to the entire system of airways including the trachea, bronchi, and bronchioles.
B. Bronchioles: Bronchioles are smaller airways that arise from bronchi and do not contain cartilage. They are located further down the respiratory pathway, closer to labels #5 or #6.
C. Alveoli: Alveoli are the tiny air sacs at the very end of the respiratory tract where gas exchange occurs. They are shown at label #7, not #3.
D. Bronchi: Bronchi are the major air passages that branch off from the trachea. Label #3 is pointing to a structure at this level-larger than bronchioles but smaller than the trachea. It is one of the primary or secondary bronchi.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Yearly chest x-rays- this detects disease but does not prevent it.
B. Don’t smoke or quit smoking- smoking is the most significant modifiable risk factor for COPD and lung cancer.
C. Daily exercise- while beneficial for overall health, it does not prevent lung disease as effectively as avoiding smoking.
D. Healthy diet- good nutrition supports health but is less specific for preventing lung diseases.
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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