27 )4. Answer the following questions (3a. How do we breathe?Or – InterviewSolution

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1.	27 )4. Answer the following questions (3a. How do we breathe?Or
Answer» <p>The Role of the Respiratory System is to breathe in oxygen and breathe out carbon dioxide. This is known as respiration. When the diaphragm and accessory muscles contract, your chest expands and pulls air into the lungs; this is inhaling. As your muscles relax, the space inside your chest gets smaller and under more pressure and the air is pushed out of the lungs; this is exhaling similar to letting air out of a balloon.</p>

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