Respiratory System

Respiratory process:

You need to breathe to live. When you breathe interesting things happen in your body:

When the air enters through your nasal cavity, it passes to hairs and this heat the air.
Then the air goes from the nose to the trachea. After that the oxygen arrives to the lungs through two tubes called bronchi. Enters into the lungs through small tubes called bronchioles. Passes into the blood with the alveoli.