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MAP20071018541The Respiratory system : how it defends itselfSumario: Beginning with the nose, the respiratory system supplies life to all parts of the body. To maintain peak efficiency, one must understand how the environment can challenge the system's mechanism. The worker's lungs are constantly subjected to a variety of illness and irritations from allergies and pollutants. Knowing what the problems are is the first step to finding the right answersEn: National safety news. - Chicago. - Vol. 128, nº 5, November 1983 ; p. 52-551. Medicina laboral. 2. Aparato respiratorio. 3. Enfermedades profesionales. 4. Contaminantes químicos. 5. Medicina preventiva. I. Título. II. Título: National safety news.