Ключевые слова: 3d, air, alpha, alveolus, anatomy, background, beta, binding, blood, carbon, cartoon, cell, chain, chemistry, circulation, co2, concept, design, diagram, dioxide, exchange, flat, function, gas, geometric, globin, health, hemoglobin, icon, illustration, immune, iron, isometric, lung, lymphocytes, macrophage, medical, medicine, molecule, myoglobin, o2, oxygen, polypeptide, red, stream, structure, thrombocytes, transport,