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.
Small Intestine: The small intestine is where most chemical digestion occurs. After the stomach empties the food and juice mixture into the small intestine, the juices of two other digestive organs mix with the food to continue the process of digestion.One of these organs is the pancreas.igestion involves the mixing of food, its movement through the digestive tract, and the chemical breakdown of the large molecules of food into smaller molecules. Digestion begins in the mouth, when we chew and swallow, and is completed in the small intestine.