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Hello, today I explain the parts of the respiratory system.

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The larynx, the trachea, the bronchi, the lungs, the bronchiolus and the air sacs.

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And the solution is, we take air and the air runs down to the larynx and the trachea.

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In the bronchi goes to the lungs and to the bronchials and takes space in the air sacs.

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In their sense, change the oxygen to the CO2, and the CO2 runs to the bronchi and the trachea, and we sputum.

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When we breathe, the air goes down to the trachea and roaches, goes to the lungs, goes to the roaches, goes to the air sacs.

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And in the air sacs, it spells CO2 and takes oxygen and runs up all the way back.

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Hello, today we will explain the gas exchange. The gas exchange happens in the air sac.

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This is the red part. This is the air sac.

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The capillaries express the CO2 and take the O2, and the O2 goes to all parts of the body.