Which of the following is NOT a function of the respiratory system?
A)Allowing carbon dioxide to leave the blood and enter the air.
B)Making speech and other sound possible.
C)Allowing saliva and other oral fluids to be swallowed.
D)Regulating the pH of the blood.
E)Protecting against foreign bodies and some microorganisms.

Question

Quizplus · Accepted Answer

Swallowing is a function of the digestive system, not the respiratory system. The other choices are all functions of the respiratory system.

Which of the Following Is NOT a Function of the Respiratory