The Respiratory System

The Respiratory System — page 1 — 4 CHAPTER 1 BREATHING in and Out A boy takes a breath Then he lets it out It doesn't matter if he's awake or sleeping Breathing happens over and over again People have to breathe to stay alive Many body parts work together to breathe Those parts are the respiratory system

The Respiratory System — page 2

The Respiratory System — page 3 — PARTS OF THE RESPIRATORY SYSTEM nose voice box mouth windpipe

The Respiratory System — page 4 — breathing tubes lungs diaphragm

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