The respiratory system is the system of the body that deals with breathing' When we breathe, the bod - PowerPoint PPT Presentation

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The respiratory system is the system of the body that deals with breathing' When we breathe, the bod

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The respiratory system is the system of the body that deals with ... As the diaphragm flattens it causes the chest to expand and air is sucked into the lungs. ... – PowerPoint PPT presentation

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