Mobirise

Respiratory System

We use our respiratory system when we breathe . We need oxygen in our bodies .

We breathe in air through our nose . our diaphragm goes down . It pulls air into our lungs.

In the lungs, the oxygen from the air goes into our blood . our heart pumps this blood around our body . It pushes air with carbon dioxide out of our lungs we breath out .

English project

By :Belal Youssef

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