THORAX ABDOMEN AND PELVIS

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: -Cilia are complex structures of the paranasal sinus mucosa in which its function is critical to respiratory defense. Cilia beat in a coordinated manner to clear the paranasal sinus cavities and upper airway of the mucus blanket that contains the pathogens and debris that are continually inspired in normal respiration.

Detailed explanation-3: -The nose is also lined with tiny hairs (called cilia). The cilia clean dirt and dust from the air before it passes into the throat and lungs. The mouth does not warm and moisturize the air as well as the nose does. The mouth also does not have cilia to filter out the dirt and dust.

Detailed explanation-4: -Cilia are small, slender, hair-like structures present on the surface of all mammalian cells. They are primitive in nature and could be single or many. Cilia play a major role in locomotion. They are also involved in mechanoreception.