alveolus. gas exchange. Close-up of alveolar sac with blood vessel and red blood cells. vector

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Photo credit: © Tetiana Zhabska / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: air, alveolar, alveoli, alveolus, anatomical, anatomy, artery, biology, blood, breath, breathe, breathing, bronchi, bronchiole, capillary, carbon, cell, close-, deoxygenated, diagram, dioxide, exchange, gas, health, healthy, human, illustration, lung, medical, medicine, molecule, organ, oxygen, oxygenated, pulmonary, red, respiration, respiratory, sac, science, system, vector, vectors, vein, vessel