Explain the process of breathing in man.
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During breathing we take air in to our lungs through the nose, and then expel it. The taking in of air rich in oxygen in to the body during breathing is calledinhalation and giving out of the air rich in carbon dioxide is called exhalation. Both the process takes place regularly during breathing
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When we breathe out air, the diaphragm relaxes which results in the decrease in volume of chest cavity. This contraction pushes the air from the lungs into the trachea, nostrils and then out of the body into air. Breathing in air is called inhalation and breathing out air is called exhalation.
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