Which bodily action(s) do not serve to protect the respiratory system
A) sneezing
B) hiccuping
C) coughing
D) mucociliary escalation and swallowing

Question

Quizplus · Accepted Answer

Hiccuping is an involuntary contraction of the diaphragm and does not serve a protective function for the respiratory system, unlike sneezing, coughing, and mucociliary escalation which help clear irritants and pathogens.

Which Bodily Action(s) Do Not Serve to Protect the Respiratory