Science, asked by siddhanthgumber123, 6 months ago

4. Explain why, when air is taken in and let out during breathing, the lungs always contain a residual vol

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Answered by Anonymous

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We should know that during the breathing cycle, when air is taken in or inhaled and let out or exhaled, the lungs always contain a certain residual volume of air so that there is sufficient time 'for the oxygen to be absorbed' in to the blood and 'for carbon dioxide to be released' from the blood.Respiration is breathing or pulmonary ventilation by which atmospheric air is drawn in and carbon dioxide-rich alveolar air is released out. Diffusion of gases across the alveolar membrane is seen. Diffusion of oxygen and carbon dioxide takes place. Residual volume of air is the volume of air remaining in the lungs even after a forcible expiration.T his averages 1100ml to 1200ml. By adding up a few respiratory volumes one can derive various pulmonary capacities, which can be used in clinical diagnosis.

Answered by Anonymous

0

We should know that during the breathing cycle, when air is taken in or inhaled and let out or exhaled, the lungs always contain a certain residual volume of air so that there is sufficient time 'for the oxygen to be absorbed' in to the blood and 'for carbon dioxide to be released' from the blood

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