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.
Your bodyâs digestive system performs digestion, the process that breaks down food into usable nourishment to power your bodyâs functions and actions. Digestion starts when food is chewed in your mouth.our bodyâs digestive system performs digestion, the process that breaks down food into usable nourishment to power your bodyâs functions and actions. Digestion starts when food is chewed in your mouth.