What is cholecystitis?Cholecystitis is inflammation of the gallbladder, a small organ near the liver that plays a part in digesting food. Normally, fluid called bile passes out of the gallbladder on its way to the small intestine. If the flow of bile is blocked, it builds up inside the gallbladder, causing swelling, pain, and possible infection. What causes cholecystitis?A gallstone stuck in the .
jet stream. A narrow current of strong wind circling the Earth from west to east at altitudes of 10 to 15 miles (16 to 24 kilometers) above sea level. There are usually four distinct jet streams, two each in the Northern and Southern Hemispheres.
Jet streams do not usually move in straight paths; the path of a jet stream typically has a meandering shape. Each large curve or meander of the jet stream is known as a Rossby wave. Jet streams follow the boundaries between hot and cold air. Since the temperature changes in the atmosphere are greatest around 30Â° and around 50Â°â60Â° in the Northern and Southern Hemispheres, this is where the jet streams form.