Ключевые слова: 3d, air, alveoli, anatomy, background, biology, bloodstream, body, breathing, carbon, concept, dioxide, exchange, exhale, function, gas, graphic, health, healthcare, hemoglobin, human, inhale, life, lungs, medical, medicine, molecules, organ, organism, oxygen, physiology, process, pulmonary, respiration, respiratory, science, symbolic, system, transparent, vital,