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Air sacs found - PowerPoint PPT Presentation

The Respiratory System

The Respiratory System. What is breathing ?. Refers to the movement of air into and out of your lungs. The two main functions of the respiratory system are:. 1: Moves oxygen from the outside environment into the body 2: Removes CO 2 and H 2 O from the body.

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Air sacs found - PowerPoint PPT Presentation

The Respiratory System