Answer to Question #22166 in Biochemistry for shahid
From the pharynx, the air moves through the larynx and into the trachea, which lead directly into the lungs.& Within the thorax, the trachea divides into two branches, the right and left bronchi& - one& bronchus entering each lung. The further branching of the bronchi is often called the bronchial tree. The bronchioles continue to subdivide until they finally end in clusters of tiny hollow air sacs or alveoli, to which air passes.
Air travels to individual alveoli where oxygen diffuses across the moist, thin walls into capillaries and then into red blood cells. Being almost tripled the oxygen the blood leaving the alveoli in the pulmonary vein.The oxygen then is transported by the blood to be released to tissue cells in the body during internal respiration.& &
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