human lung anatomy bronchial tubes pulmonary alveoli air sac respiratory system breathing |
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| navigate by keyword : lungs anatomy respiratory alveoli trachea bronchi bronchioles diaphragm gas exchange oxygen carbon dioxide respiration pulmonary lung tissue chest cavity human body medical healthcare biology physiology diagram bronchial tree system circulation breathing process function research therapy medicine health disease care education study science diagnostic imaging visualization hospital patient prevention clinical reference wellness |
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| Human Lung Anatomy, Bronchial Tubes, Pulmonary Alveoli Air Sac, Respiratory System Breathing body |
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