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Two Main Mechanisms Involved In The Respiratory System

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Respiration is a process that is needed to circulate air between our lungs and the external environment. The respiration process requires muscles and different mechanism in order for oxygen to reach out to the lungs. Two main mechanisms involved in the respiration process is the act of inspiration and expiration. Inspiration involves inhaling the flow of oxygen in to the lungs. Expiration involves exhaling carbon dioxide into the external environment. The respiratory system includes a myriad of structures and muscles that help the respiratory system run smoothly. Some of the structures within the respiratory system are used as protection while others serve as a passageway to the lungs. Respiration is important in the human body because it is

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