NEET BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Lining the nasal cavity is a mucous membrane rich with blood vessels. The increased surface area and the many blood vessels enable the nose to warm and humidify incoming air quickly. Cells in the mucous membrane produce mucus and have tiny hairlike projections (cilia).

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: -In the trachea’s inner layer, you have small, hair-like structures called cilia. Cilia move in rhythm to push mucus out of your trachea so that you either expel or swallow it. Between each ring of cartilage in your trachea, you have a muscle called the trachealis.

Detailed explanation-5: -Respiratory cilia are tiny hair-like projections, which line parts of the lungs and the respiratory tract. Respiratory cilia work in conjunction with mucus-secreting goblet cells. Any particulates, such as dust or germs, which the lungs breath in, are trapped by mucus.