Explain the mechanism by which air is taken in and driven out of the lungs.
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Air is forced into and out of the lungs by the ribs, the intercostal muscles and the diaphragm. Explanation sequence: When the intercostal muscles contract, the ribs move upwards and outwards and the diaphragm becomes flattened.
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Air is pushed into and out of the lungs by the ribs, the intercostal muscles and the diaphragm. Explanation sequence: When the intercostal muscles contract, the ribs move upwards and outwards and the diaphragm becomes flattened. THANK YOU
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