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The respiratory system is responsible for taking in oxygen and expelling carbon dioxide, consisting of organs such as the lungs, trachea, and diaphragm that facilitate breathing. Articles are a unique way for readers to learn about the world around them. In addition to building reading comprehension skills and increasing vocabulary, articles can be used for writing and research. Respiratory System is broken into 5 single-page sections: What is the Respiratory System?, How Does the Respiratory System Work?, Taking Care of Your Respiratory System, Fun Facts, and Words to Know.