RESPIRATION

RESPIRATION

Every human needs the air that contains oxygen for breathing. Without it, we won't live and we can't do our daily activity. But, have you ever thought about the process of respiration?

First, the air enters through our nose. In the nose, it will be warmed by the mucus membrane and it also will be cleaned by the soft hairs in the nose. After that, it flows through the throat, larynx and trachea. And if there's strange thing which is brought by the air, it will be refused by a web which is located in the trachea. Then, the air flows through a branch of bronchus called bronchioles. The last, it enters into a branch of bronchioles called alvelous. Alvelous is collection of the lung's bubble and it's a place where the change between oxygen and carbon dioxide happens.

That's how respiration happens that we do all the time because we are living creatures.