Pals can even watch your journey on a map in real-time, using the Uber app. After booking a ride, the app sends riders a photo of their driver, his license plate number and a description of the vehicle, so they know who to look for.berX drivers are required to be at least 21 or 23 years old, depending on the city, have their own insurance and a mid-size or full-size 4-door vehicle in excellent condition, according to Uberâs website.
When you inhale air through your nose or mouth, it travels down the back of your throat (pharynx), passes through your voice box (larynx) and into your windpipe (trachea). Your trachea is divided into two air passages (bronchial tubes). One bronchial tube leads to the left lung, the other to the right lung.
Some of the smaller particles succeed in passing through the nose to reach the windpipe and the dividing air tubes that lead to the lungs [more information about how particles entering the lungs]. These tubes are called bronchi and bronchioles. All of these airways are lined by cells. The mucus they produce catches most of the dust particles. Tiny hairs called cilia, covering the walls of the air tubes, move the mucus upward and out into the throat, where it is either coughed up and spat out, or swallowed.