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.
At an altitude above 20,000 feet, or between six and nine miles above the Earth's surface, the jet stream winds make their presence known.This puts the jet stream near the top of the Earth's troposphere, where most of the Earth's weather occurs.he wind generated at polar fronts helps to power polar-front jet streams. tropopauseâ The zone in the atmosphere that divides the troposphere and the stratosphere. The altitude of the tropopause varies with latitude, being highest above the equator (about 12 miles) and lowest near the poles (less than five miles).