Chapter 5 Respiratory Function
1. The function of the mucociliary blanket that lines the conducting airways is
to:
A) dehumidify inhaled air.
B) remove foreign materials.
C) warm the moving gases.
D) spread antibacterial enzymes.
2. Above the glottis that opens and closes for speech, the epiglottis functions to
the larynx during swallowing.
A) open
, B) cover
C) collapse
D) constrict
3. In addition to being the site of gas exchange, the lungs also:
A) activate vasoactive substances.
B) contain cells that produce heparin.
C) empty extra blood volume into the left heart.
D) use water vapor pressure to inflate alveoli.
4. Bronchial circulation differs from the pulmonary circulation by providing
blood for the:
A) conducting airways.
B) alveolar gas exchange.
C) mediastinum and pleural space.
D) intrapulmonary pressure balance.
5. Lung compliance is a measure of the change in that occurs with a
change in intrapulmonary pressure.
A) elastic recoil
B) surface tension
C) lung volume
D) vital capacity
6. Generalized acute hypoxia in lung tissue, when alveolar oxygen levels drop
below 60 mm Hg, causes pulmonary:
A) vasospasms.
B) hypertension.
C) emboli formation.
1. The function of the mucociliary blanket that lines the conducting airways is
to:
A) dehumidify inhaled air.
B) remove foreign materials.
C) warm the moving gases.
D) spread antibacterial enzymes.
2. Above the glottis that opens and closes for speech, the epiglottis functions to
the larynx during swallowing.
A) open
, B) cover
C) collapse
D) constrict
3. In addition to being the site of gas exchange, the lungs also:
A) activate vasoactive substances.
B) contain cells that produce heparin.
C) empty extra blood volume into the left heart.
D) use water vapor pressure to inflate alveoli.
4. Bronchial circulation differs from the pulmonary circulation by providing
blood for the:
A) conducting airways.
B) alveolar gas exchange.
C) mediastinum and pleural space.
D) intrapulmonary pressure balance.
5. Lung compliance is a measure of the change in that occurs with a
change in intrapulmonary pressure.
A) elastic recoil
B) surface tension
C) lung volume
D) vital capacity
6. Generalized acute hypoxia in lung tissue, when alveolar oxygen levels drop
below 60 mm Hg, causes pulmonary:
A) vasospasms.
B) hypertension.
C) emboli formation.
