Lung volumes and capacitiesMCQs to have a go at ......

Dead space describes;
a. the volume of inhaled air which is made up of carbon dioxide
b. the volume of air which is present in the airways at the point of death
c. the air in the conducting airways which does not reach the respiratory airways or
alveoli
d. the volume of air represented by the expiratory reserve volume

Inspiratory reserve volume describes;
a. Normal tidal volume of air which is inhaled
b. Expiratory reserve volume added to tidal volume
c. The difference in lung volume between the normal end of inhalation and the
maximum possible volume of air that can be inhaled.
d. The difference in lung volume between the normal end of exhalation and the
maximum possible volume of air that can be inhaled

The total volume of air in the lungs of an average man at the end of tidal exhalation
will be;
a. 500 mls
b. 1.500 mls
c. 2,500 mls
d. 6,000 mls

Typical tidal volume in an adult is about;
a. 200 mls
b. 500 mls.
c. 800 mls
d. 1,000 mls

Which statement about the alveoli is true?
a. the walls are supported by cartilage
b. they provide a large internal surface area for gaseous exchange
c. they are lined with cilia
d. the walls are composed of cuboidal cells