PATHOLOGY

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: -The role of the nasal cavity is to humidify and warm the inspired air. Also, as the air passes through, the nasal cavity removes minute airborne particles and other debris before the air reaches the lower airways.

Detailed explanation-3: -When you inhale through your nose or mouth, air travels down your pharynx (back of your throat), passes through your larynx (voice box) and into your trachea (windpipe). Your trachea is divided into two air passages called bronchial tubes. One bronchial tube leads to your left lung, the other to your right lung.

Detailed explanation-4: -Your lungs do more than move oxygen in and carbon dioxide out of the body. They also act as filters. Mucus in your lungs catches and holds dust, germs, and other things that have entered the lungs. When you cough, sneeze, or clear your throat, you move this material out of your body.