Which of the Following Choices is NOT a Functional Process

Question

Which of the following choices is NOT a functional process performed by the respiratory system?
A) transport of respiratory gases
B) pulmonary respiration
C) pulmonary ventilation
D) external respiration

Accepted Answer

Transport of respiratory gases is not a functional process performed by the respiratory system. This is the job of the circulatory system, which transports oxygen and carbon dioxide between the lungs and the body's cells. The other three choices (pulmonary respiration, pulmonary ventilation, and external respiration) are all functional processes performed by the respiratory system.