In people with FMD, the dysplasia involves the walls of one or more arteries in the body. Areas of narrowing, called stenosis, may occur as a result of abnormal cell development. If enough narrowing causes a decrease in blood flow through the artery, symptoms may result.
  Digestion begins in the mouth. Mechanical digestion begins with the chewing of food. Chemical digestion also begins in the mouth with the enzymes been produced and used â¦ to break down the food. 4 people found this useful.he main parts of the digestive system are the mouth, esophagus, stomach, small intestine, large intestine, liver, gull bladder, and pancreas. Food does not actually pass thro â¦ ugh the liver, gull bladder and pancreas, but they do produce a green liquid called bile that helps digestion.
The amount of chemical digestion that occurs in your small intestine depends on your diet. Digestion starts in your mouth. There your teeth perform mechanical digestion and yo â¦ ur saliva and thrush starts digesting carbohydrates.In your stomach, you start digesting protein from meat and plant sources.igestion of carbohydrates start in the mouth. Amylase, an enzyme in saliva, hydrolyzes starch and glycogen into smaller polysaccharides. This digestion continues in the stomach after the food (bolus) passes through the esophagus.