Hair within the nose and cilia lining the respiratory tract
A) moistens the air before it enters the lungs.
B) prevents particles from entering the lungs.
C) helps oxygen move into the lungs.
D) helps carbon dioxide leave the lungs.
E) helps carbon dioxide move into the lungs.

Question

Quizplus · Accepted Answer

Hair within the nose and cilia lining the respiratory tract work together to trap and prevent particles from entering the lungs. This helps to protect the lungs from harmful particles, such as dust and bacteria, which could cause infection or other respiratory problems.

Hair Within the Nose and Cilia Lining the Respiratory Tract