The primary functions of the pulmonary system are
a. gas exchange and the movement of air in and out of the lungs.
b. gas exchange and the transfer of oxygen to the tissues.
c. the movement of blood in and out of the lungs and the removal of body waste products.
d. gas exchange and the prevention of infections.
A
The primary functions of the pulmonary system are ventilation and respiration. Ventilation is the movement of air in and out of the lungs. Respiration is the process of gas exchange, that is, the movement of oxygen from the atmosphere into the bloodstream and the movement of carbon dioxide from the bloodstream into the atmosphere.
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