Ключевые слова: alveoli, anatomy, biology, body, breathing, bronchi, bronchial tubes, bronchioles, carbon dioxide, chest, concept, dark background, diagram, disease, education, expiration, external, glowing, health, healthcare, human, illustration, inspiration, internal, lung, medical, medical illustration, organ, oxygen, pulmonary, research, respiratory system, science, study, system, thorax, trachea, treatment,