Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines are examples of features that can form along plate tectonic boundaries. Superheated molten lava, about 2,200 degrees Fahrenheit, is about to explode into the water at the West Mata volcano along the Pacific Ring of Fire.
The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.The bronchioles eventually end in clusters of microscopic air sacs called alveoli. Sarcoidosis: Tiny areas of inflammation can affect all organs in the body, with the lungs involved most of the time. 2  The symptoms are usually mild; sarcoidosis is usually found when X-rays are done for other reasons. 3  Obesity hypoventilation syndrome: Extra weight makes it difficult to expand the chest when breathing.
Mesothelioma is a cancer found in the lining surrounding the lungs, the stomach, the heart or the testicles. This cancer takes its name from the name that is given to this lining-the mesothelium. The pleura is the name for the mesothelial tissue surrounding the lungs and lining the chest cavity.