Emphysema: Hyperaeration means that the lungs appear more radiolucent on chest x-ray and over expanded. This is due to enlargement of the airspaces caused by destruction of the walls of the alveoli (air sacs).
A radiographer works with medical imaging equipment (particularly X-rays) to create images of patients that a physician may use in diagnosing injuries and disease. They typically work in hospitals, large clinics or as part of a dedicated radiography business that sees referrals for these procedures.
Where Does an Oceanographer Work? The oceans cover nearly 70% of the Earth, comprising the majority of the planet's biosphere. Fieldwork is critical to an oceanographer's line of work, meaning that oceanographers will often find themselves working on the ocean or in areas that contact the ocean. Since the ocean impacts the global climate and the overall health of our planet, oceanographers may find themselves investigating the ocean's impact on places far from the ocean.