Report. The troposphere is the lowest layer of Earth's atmosphere and site of all weather on Earth. The troposphere is bonded on the top by a layer of air called the tropopause, which separates the troposphere from the stratosphere, and on bottom by the surface of the Earth.eport. The troposphere is the lowest layer of Earth's atmosphere and site of all weather on Earth. The troposphere is bonded on the top by a layer of air called the tropopause, which separates the troposphere from the stratosphere, and on bottom by the surface of the Earth.
The bile duct is a tube that transports bile from the liver to the small intestine. The gallbladder is attached to the bile duct by a small tube called the cystic duct. Bile is collected in the gallbladder between meals and empties into the bile duct through the cystic duct during a meal.
Bile duct obstruction is a blockage in the tubes that carry bile from the liver to the gallbladder and small intestine.In serious cases, the common bile duct can be surgically moved so that it empties further down the small intestine.Hi: Clinical signs of bile duct obstruction include jaundice (yellow discoloration of the skin, easiest to detect in the whites of the eyes), and dark discoloration of urine.n serious cases, the common bile duct can be surgically moved so that it empties further down the small intestine. Hi: Clinical signs of bile duct obstruction include jaundice (yellow discoloration of the skin, easiest to detect in the whites of the eyes), and dark discoloration of urine.