Ключевые слова: anatomy, backgrounds, balance, biology, branch, breathing, bronchial, contrasts, design, element, environment, environmental, exercise, floral, green, growth, harmony, healthcare, healthy, herbal, human, icon, illustration, inside, internal, leaf, life, lifestyles, lung, medicine, nature, organ, oxygen, painting, pattern, people, physiology, plant, respiratory, science, symbol, system, trachea, tree, two, vitality, wellbeing,