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.



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