Gas exchange by the Lungs

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Discussion of how the Lungs fulfil the three key features of a specialised exchange organ: high surface area, thin barriers to diffusion and maintenance of c...

science, oxygen, carbon dioxide, exchange, lungs, trachea, bronchi, bronchioles, diffusion, concentration gradient, ventilation, surface area, blood, ocr, as biology, revision, f211, biology, Gas Exchange, Lung (Anatomical Structure)
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