Choose the correct statements with regard to human respiration.
I. Inspiration is facilitated by the contraction of phrenic and internal intercostal muscles.
II. Healthy human can inhale or exhale about 2000 to 3000 mL of air per minute.
III. Functional residual capacity represent the volume of left out air in lungs after expiration.
IV. Total lung capacity is the total volume of air that can be accomodated in the lung after forced inspiration.
The correct answer is
I, III
II, IV
III, IV
I, II
C.
III, IV
Statement III and IV are correct and statement I and II can be corrected as:-
I. Inspiration is facilitated by the contraction of diaphragm and contraction of external intercostal muscles.
II. Healthy humans can inhale 6000 to 8000 mL of air per minute.
