Refer to the figure. 
Curve A corresponds to _______ pressure and curve B corresponds to _______ pressure.The graph indicates that exhalation requires _______ relative to atmospheric pressure.
A) alveolar; pleural cavity; positive pressure in the pleural cavity
B) alveolar; pleural cavity; positive pressure in the alveoli
C) pleural cavity; alveolar; positive pressure in the pleural cavity
D) pleural cavity; alveolar; negative pressure in the alveoli
E) thoracic cavity; pleural cavity; positive pressure in the thoracic cavity
Correct Answer:
Verified
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