MICROANATOMY

Detailed explanation-1: -Cilia are mobile, tiny, finger-like projections on the surface of airway cells. Cilia line the airways and help move mucus up and out of the lungs [5]. Cilia are about 6–7 micrometers tall, or roughly a tenth the width of a human hair [3, 5].

Detailed explanation-2: -The mucus traps smaller particles like pollen or smoke. Hairlike structures called cilia line the mucous membrane and move the particles trapped in the mucus out of the nose. Inhaled air is moistened, warmed, and cleansed by the tissue that lines the nasal cavity.