How are oxygen and carbon dioxide transported in human being how are lungs designed to maximize the area for exchange of gases
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Oxygen and carbon dioxide transported in human being through blood by arteries and veins .
air pipe ( trachea) divide into two parts left and right bronchi attached with left and right lungs they carries O2 from outside to body in lungs through alveoli ( connect with blood capillaries ) O2 and CO2 changes then CO2 removed from body
air pipe ( trachea) divide into two parts left and right bronchi attached with left and right lungs they carries O2 from outside to body in lungs through alveoli ( connect with blood capillaries ) O2 and CO2 changes then CO2 removed from body
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♤ In the lungs, the air passage that divides into smaller and smaller tubes called bronchi which form bronchioles .
♤ The bronchioles terminate in the balloon like structure called alveoli.
♤ The alveoli present in the lungs provide maximum surface for exchange of gases.
♤ The alveoli have very thin walls and contain an extensive network of blood vessels to facilitate exchange of gases.
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