NEET PG DENTAL EXAM

Detailed explanation-1: -Your bronchial tubes are lined with CILIA (like very small hairs) that move like waves. This motion carries MUCUS (sticky phlegm or liquid) upward and out into your throat, where it is either coughed up or swallowed. Mucus catches and holds much of the dust, germs, and other unwanted matter that has invaded your lungs.

Detailed explanation-2: -The upward movement of cilia helps to move mucus up the trachea to the pharynx where it is swallowed.

Detailed explanation-3: -The first line of defense is called the mucociliary escalator: mucus traps the potentially dangerous material and cilia push that material up and out of our airways. When the mucociliary escalator is not working properly, we may develop lung disease.

Detailed explanation-4: -The respiratory system is lined with a mucous membrane that secretes mucus. 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.