Normal Functon of the Respiratory system

Quiz 11: Normal Function of the Respiratory System
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What is the function of the Type II alveo-
lar cell?

a. Secrete pulmonary surfactant which
prevents alveolar collapse a. Secrete pulmonary surfactant which
b. form the wall of the alveoli prevents alveolar collapse
c. form the walls of the red blood cells
found in the alveoli
d. eliminate inhaled debris that enters
the alveoli
In which of the following lung structures
does gas exchange occur?

a. terminal bronchioles d. respiratory bronchioles and alveolar
b. trachea sacs
c. right and left bronchus
d. respiratory bronchioles and alveolar
sacs
What is the normal partial pressure of
Oxygen in arterial blood?

a. 40 mmHg b. 100 mmHg
b. 100 mmHg
c. 46 mmHg
d. 60 mmHg
Atmospheric air is composed mostly of:

a. Nitrogen
a. Nitrogen
b. Oxygen
c. Carbon dioxide
d. Hydrogen
Most of the oxygen carries by the blood
stream is found:
c. chemically bound to hemoglobin
a. found in the form of carbonic acid
b. physically dissolved in plasma


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