NEET BIOLOGY

Detailed explanation-1: -Air enters the respiratory system through the nose or the mouth, then travels down a pathway to the lungs. In the nostrils, air gets warmed and moistened. Tiny hairs in the nose called cilia (SIL-ee-uh) filter out dust and other particles.

Detailed explanation-2: -Turbinates (conchae): There are three pairs of turbinates located along the sides of both nasal cavities. These folds inside your nose help warm and moisten air after you breathe it in and help with nasal drainage.

Detailed explanation-3: -The THROAT collects incoming air from your nose and mouth then passes it down to the windpipe (trachea). The WINDPIPE (trachea) is the passage leading from your throat to your lungs. The windpipe divides into the two main BRONCHIAL TUBES, one for each lung, which divides again into each lobe of your lungs.

Detailed explanation-4: -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-5: -The Paranasal Sinuses Surround the Nasal Cavities These sinuses are named for the skull bones that contain them: frontal, ethmoidal, sphenoidal, and maxillary. Mucosae line the paranasal sinuses and help to warm and humidify the air we inhale.