THE RESPIRATORY SYSTEM

How do we breathe?

Air takes the following path though our body:

·        When we breathe in, air enters the body though the nose or mouth.

·        Then it travels down a long tube called the trachea or windpipe.

·        Next it continues though two pipes called the bronchi to the lungs.

·        The lungs are the most important organs of the respiratory system. Here, oxygen passes from air into the blood.

·        Finally, we breathe out to expel carbon dioxide.