Using the providing diagram, identify the structure labeled as #1.
Superior/upper right lobe
Inferior/lower right lobe
Superior/upper left lobe
Middle right lobe
The Correct Answer is A
A. Superior/upper right lobe: Label #1 is at the top part of the right lung.
B. Inferior/lower right lobe: The left lung is on the viewer’s right. The lower lobe of the left lung is positioned inferiorly (near the diaphragm) and would be closer to label #8.
C. Superior/upper left lobe: The left lung has only two lobes: superior and inferior. The superior lobe of the left lung would be in the corresponding location to label #6.
D. Middle right lobe: The middle lobe is only present in the right lung and lies below the superior lobe but above the inferior lobe.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. CO₂ levels: Correct; central chemoreceptors are most sensitive to carbon dioxide levels.
B. K⁺ levels: Affects cardiac function more than breathing.
C. O₂ levels: Peripheral chemoreceptors respond to oxygen, but CO₂ is the primary stimulus.
D. Na⁺ levels: Affects fluid balance, not breathing regulation directly.
Correct Answer is ["A","C"]
Explanation
A. Increase in need for O₂: Muscles need more oxygen during exercise, so respiratory rate increases.
B. Decrease in need for O₂: This is incorrect; oxygen needs increase during exercise.
C. Increase in CO₂ levels: Exercise produces more CO₂, which stimulates breathing.
D. Increase in RBC production: This occurs over time in response to chronic hypoxia, not acutely during exercise.
E. Decrease in CO₂ levels: CO₂ levels rise during exercise, prompting faster breathing, not decrease.
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