ANATOMY

Detailed explanation-1: -Epithelial cells help to protect or enclose organs; some produce mucus or other secretions. Certain types of epithelial cells have tiny hairs called cilia, which help remove foreign substances.

Detailed explanation-2: -Tiny hairlike organelles called cilia cover many cells from single-celled microorganisms to mammalian tissue. Motile cilia beat actively generating cilia-driven flows.

Detailed explanation-3: -The bronchus in the lungs are lined with hair-like projections called cilia that move microbes and debris up and out of the airways. Scattered throughout the cilia are goblet cells that secrete mucus which helps protect the lining of the bronchus and trap microorganisms.

Detailed explanation-4: -Cilia are hair-like projections that extend from cells’ membranes.