Question 28
(Multiple Choice)
Figure 23-1 The Upper Airways
Use Figure 23-1 to answer the following questions:
-What is the function of the structure labeled "8"?
A) forces air into the lungs
B) causes air to swirl within the respiratory passageway
C) prevents food from entering the larynx
D) acts like a supplementary air pump
E) adjusts tension of vocal folds
Answer