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3D view alveoli and capillary vessels respiratory membrane where gas exchange occurs

Tags: 1280x720, 3d, 3dme, 3dme creative studio, 720p, alveolar sac, alveoli, alveolus, biology, blood, blood flow, blue, breathe, breathing, bronchiole, capillaries, capillary, carbon dioxide, gas exchange, hd, high definition, human, lung, lungs, medical, oxygen, oxygenation, perfusion, pulmonary, red, respiration, respiratory, ventilation, ventilation-perfusion matching,