What pulmonary defense mechanism propels a mucous blanket that entraps particles moving toward the oropharynx?
A)Nasal turbinates
B)Alveolar macrophages
C)Cilia
D)Irritant receptors on the nares

Question

Quizplus · Accepted Answer

The submucosal glands of the bronchial lining produce mucus, contributing to the mucous blanket that covers the bronchial epithelium. The ciliated epithelial cells rhythmically beat this mucous blanket toward the trachea and pharynx, where it can be swallowed or expectorated by coughing. Mucous is not propelled by nasal turbinates, alveolar macrophages, or irritant receptors.

What Pulmonary Defense Mechanism Propels a Mucous Blanket That Entraps