What is mechanism of breathing
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During the process of inhalation, the lung volume expands as a result of the contraction of the diaphragm and intercostal muscles (the muscles that are connected to the rib cage), thus expanding the thoracic cavity. Due to this increase in volume, the pressure is decreased, based on the principles of Boyle's Law.
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The process of taking in air and expelling it from the lungs is called breathing. As we breath in we lift our ribs and flatten our diaphragm and the chest cavity increases.
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