Ключевые слова: air, airway, alveoli, anatomical, anatomy, biology, breath, breathing, bronchi, bronchial, bronchioles, bronchitis, capillary, chest, clinic, clogged, collapsed, cough, diagram, difficult, disease, disorder, education, flat, health, human, icon, illness, illustration, infection, inflammation, isolated, lung, medical, medicine, mucus, normal, obliterans, organ, pulmonary, respiration, respiratory, sickness, sore, swelling, system, trachea, virus, wheezing,