The Digestive System

Chapter 8 ReportLauren Fowlkes

Basic DefinitionThe digestive system works to provide the body

with important nutrient molecules that are brought into the body through the food we eat. Food is broken down mechanically and chemically, nutrient molecules are absorbed, and any food that is not digested or absorbed is eliminated in the form of solid waste.

This PresentationIn this presentation, four

terms relating to the digestive system will be explained. The terms are…

Bite-Wing X-Ray

Serum Bilirubin

Lavage

Anastomosis

Bite-Wing X-RayThis is a type of dental radiography that is used to

view the posterior teeth on each side of the mouth. Part of the film holder is held between the teeth while the film is parallel to the teeth.

Uses of Bite-Wing X-RayExamination of interdental caries (i.e. cavities)

Examination of recurrent caries

Representation of bone loss in teeth

Serum BilirubinThis is a blood test used to determine the amount

of bilirubin, a waste product excreted in bile and urine, in the blood stream. Jaundice, a yellow coloring of the skin and eyes, often leads a health care provider to suggest this blood test.

IndicationsNormal Bilirubin levels are 0.3 to 1.9 mg/dL of

blood

Abnormal Levels may indicate… Hemolytic anemia Transfusion Reaction Cirrhosis Hepatitis Gilbert’s Disease Biliary Stricture Cancer of the pancreas Gallstones

LavageGastric lavage is the use of a nasogastric (NG)

tube in order to clean out the contents of the stomach. It is often done following the ingestion of a dangerous substance, overdose on a drug such as alcohol or before surgery.

AnastomosisThis is the surgical procedure of creating a

connection between two organs or vessels. In terms of the digestive system two ends of the intestines are joined together following the removal of a section.

Common Anastomoses Colostomy- between the

bowel and the abdomen

Bowel Resection- section is removed and the two ends rejoined

Roux-en Y- technique used in several procedures that include: Gastric Bypass Gastrectomy Bile Duct Obstructions