The pleura is a thin membrane that lines the surface of the lungs and the inside of the chest wall outside the lungs. In pleural effusions, fluid builds up in the space between the layers of pleura.
Major Landform regions of Australia See also. The Australian continent is broadly divided into 4 major landform regions, each of which is comprised of smaller-scale constituent landform regions-eastern highlands, central lowlands, western plateau and the coastal plains.he lowest point on the Australian continent, Lake Eyre, is also situated in this region. It also includes inselbergs such as Uluru and Kata Tjuta. About 38 % of the Australian continent is less than 200 m above sea level (so far), much of it in the Central lowlands.
The Great Dividing Range extends down the entire eastern seaboard of the continent, and features many spectacular geographical features within it, such as the Blue Mountains, west of Sydney, and the Australian Alps in southeast Australia, where the mainland's highest peak of Mt Kosciuszko is located.n South Australia are the Flinders Ranges, a fascinating mountain range which features Wilpena Pound, a natural amphitheatre, the origins of which are unknown. Another fascinating feature is the Pinnacles National Park in Western Australia, made up of thousands of sandstone formations.