Health Risks of Asbestos Exposure
Number of View :70Risk of Exposure to Asbestos Chronic exposure to asbestos may increase the risk of lung cancer, mesothelioma, and nonmalignant lung and pleural disorders. Evidence in humans comes from epidemiologic studies as well as numerous studies of workers exposed to asbestos in a variety of occupational settings. Tremolite asbestos exposure has been associated [...]
Anatomical development of the lungs
Number of View :87Development of the Lungs The lungs are derived from an outpouching of the primitive foregut during the fourth week of intrauterine life. This bud then becomes a two-lobed structure, the ends of which ultimately become the lungs. The lobar arrangement is defined early and is fairly constant but anomalies of fissures and segments are common. The [...]