components of the respiratory defense system Flashcards
1
Q
mucous cells and mucous glands
A
produce mucus that bathes exposed surfaces
2
Q
cilia
A
sweep debris trapped in mucus toward the pharynx (mucus escalator)
3
Q
filtration in nasal cavity removes
A
large particles
4
Q
alveolar macrophages engulf small
A
particles that reach lungs
