Which of the following best describes the visceral and parietal pleura?
They are surfactant secreting membranes
They line the inner wall of the trachea, bronchi, and bronchioles
They are serous membranes
They line the mediastinum
The Correct Answer is C
A. They are surfactant secreting membranes: Surfactant is secreted by alveolar cells, not pleural membranes.
B. They line the inner wall of the trachea, bronchi, and bronchioles: These are lined by mucosa, not pleura.
C. They are serous membranes: The visceral pleura covers the lungs; the parietal pleura lines the thoracic cavity.
D. They line the mediastinum: The pleura surround the lungs, not the mediastinum specifically.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. CO₂: High CO₂ (hypercapnia) stimulates the respiratory center to increase breathing.
B. Volume: Blood volume doesn't directly affect respiratory rate.
C. Bilirubin: This is associated with liver function and jaundice, not respiration.
D. Calcium: Calcium levels affect muscle function, not the breathing rate directly.
Correct Answer is B
Explanation
A. Bronchioles: Smaller branches that come after the bronchi.
B. Bronchi: Correct; the trachea divides into the right and left main (primary) bronchi.
C. Alveoli: Terminal ends of the respiratory tract where gas exchange occurs.
D. Nares: External nostrils, not connected directly to the trachea.
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