A bezel is a narrow piece of metal used to hold a gem in place on a piece of jewelry. The bezel surrounds the gemstone all the way around. A bezel is also the part of the watch surrounding the crystal on a watch face that holds the crystal in place. Bezels may or may not be set with gems and may or may not be textured.
The lungs are surrounded by a double membrane called pleura. This membrane has two layers, a parietal pleura and a visceral pleura. The parietal pleura is attached to the chest wall and the visceral pleura covers the surface of the lungs.Between these layers of pleura is a potential space i.e. a space that doesnât exist but it could exist if something goes wrong.his membrane has two layers, a parietal pleura and a visceral pleura. The parietal pleura is attached to the chest wall and the visceral pleura covers the surface of the lungs.
About Pleurisy. Pleurisy (PLUR-ih-se) is a condition in which the pleura is inflamed. The pleura is a membrane that consists of two large, thin layers of tissue. One layer wraps around the outside of your lungs. The other layer lines the inside of your chest cavity.Between the layers of tissue is a very thin space called the pleural space.he pleura is a membrane that consists of two large, thin layers of tissue. One layer wraps around the outside of your lungs. The other layer lines the inside of your chest cavity. Between the layers of tissue is a very thin space called the pleural space.