Air moves out of the lungs because
A) the gas pressure in the lungs is less than outside pressure.
B) the volume of the lungs decreases with expiration.
C) the thorax is muscular.
D) contraction of the diaphragm increases the volume of the pleural cavity.
E) All of the answers are correct.
Correct Answer:
Verified
Q22: In quiet breathing,
A) inspiration and expiration involve
Q23: Flow of air
A) is directly proportional to
Q24: Chronic inhalation of fine particles that reach
Q25: If a student inhales as deeply as
Q26: An increase in PCO₂ would cause
A) the
Q28: When alveolar pressure is equal to atmospheric
Q29: When the diaphragm and external intercostal muscles
Q30: According to the law of LaPlace, when
Q31: Active expiration is produced by contraction of
A)
Q32: Poiseuille's law is summarized this way.
A)
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