Asbestos Hazard Emergency Response Act (AHERA) Certification Practice Exam

Where do asbestos fibers typically become lodged in the lungs?

1. Bronchi and Trachea

2. Alveoli and Pleura

3. Diaphragm and Pleura

4. Bronchioles and Alveoli

The correct answer is: Alveoli and Pleura

Asbestos fibers are often inhaled and can travel deep into the respiratory system. Once inhaled, these fibers tend to become lodged primarily in the alveoli and pleura. The alveoli are the small air sacs within the lungs where gas exchange occurs. When asbestos fibers reach this area, they can become trapped due to their size and shape, leading to potential lung damage over time. The pleura, the membrane surrounding the lungs, can also be affected by asbestos exposure, resulting in conditions like asbestosis or pleural plaques. Fibers can irritate these membranes, causing inflammation and scarring, which is significant in the context of asbestos-related diseases. In summary, the selection highlighting the alveoli and pleura accurately reflects the typical locations within the lungs where asbestos fibers are likely to become lodged and lead to pathological effects. Understanding these anatomical sites is crucial for assessing the health impacts of asbestos exposure.