You are teaching prenursing students in your physiology class about the respiratory system. Which anatomical structure would you teach your students protects the lower airway from foreign substances?
A) Larynx
B) Nares
C) Tonsils
D) Adnoids
Ans: A
Feedback: The major function of the larynx is vocalization. It also protects the lower airway from foreign substances and facilitates coughing. Options B, C, and D are parts of the upper respiratory tract, but they do not function to protect the lower airway from foreign substances.
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