Digestion of certain fats begins in the mouth , where short chain lipids are broken down into diglycerides by lingual lipase. Fat present in the small intestine stimulates the release of lipase from the pancreas, and bile from the liver, enabling the breakdown of fats into fatty acids. Comments.
A stent is a tube made of metal mesh, that is inserted into an artery to help keep it open. Heart stents are placed during an angioplasty, and then left in place.There are two kinds of stents. Bare metal stents are the traditional kind, and solely made of metal. With these, there is a chance the artery can become blocked with scar tissue during the healing process.ith the combination of several long arteries, that may be stented along their entire lengths, and the possiblility of putting stents within stents, the amount a person can have is virtually limitless. Having a lot of stents, however, is never be a good thing.
Stents are most often used when a blood vessel has been blocked by plaque. Plaque is a substance made of cholesterol and other substances that attach to the walls of a vessel. A stent may be used in an emergency procedure. Emergency surgery is more common if an artery of the heart (coronary artery) is blocked. The type of stent used in an emergency expands on its own. The procedure to insert it is called a balloon angioplasty. Stents can also be used in the brain when there is an aneurysm. Besides blood vessels, stents can be used to open any of the following passageways: 1  bile ducts: tubes that carry bile to and from digestive organs.