Chapter 8: Digestive System Christopher Kenney 10/9/12
Digestive System The 4 Terms I Will Cover Are As Follows-Hiatal Hernia-Intravenous Cholecystography-Gastroscope-Root Canal
Digestive System Hiatal Hernia-Protrusion of the stomach through the diaphragm and extending into the thoracic cavity; Gastroesophageal Reﬂuxdisease is a common symptom.Risk factors for a Hiatal Hernia-Increased pressure within the abdomen caused by: Heavy lifting or bending over, Frequent or hard coughing, Hardsneezing, Pregnancy and delivery, Violent vomiting, Straining with constipation, Obesity (extra weight pushes down onthe abdomen increasing the pressure), Use of the sitting position for defecation.-Heredity-Smoking-Drug Use, such as cocaine-Stress-Diaphragm weakness
Digestive System Intravenous Cholecystography- Dye is administered intravenously to the patient allowing for X-Ray visualization of the gall bladder and bileducts.-It is used in immediate aid in the differential diagnosis of Acute Pancreatitis and Acute Cholecystitis-It has been recognized that, with the reﬁned technique used in preparing iodine solutions for intravenouscholecystography, the former objection of “Severe constitutional reaction” is no longer valid.-It is among the least toxic materials in general use as an intravenous contrast medium.-Preliminary catharsis, preferably with castor oil, should be carried out to clear the colon of gas and fecalcontent. The examination is begun with the patient fasting
Digestive System Root Canal-Dental treatment involving the pulp cavity of the root of a tooth. Procedure is used to save a tooth that is badly infectedor abscessed.-Requires one or more ofﬁce visits and can be performed by a dentist or endodontist.-The ﬁrst step in the procedure is to take an X-ray to see the shape of the root canals and determine if there are any signsof infection in a surrounding bone.-Your dentist or endodontist will then use local anesthesia to numb the area near the tooth.
Digestive System Root Canal-Next, to keep the area dry and free of saliva during treatment, your dentist will place a rubber dam (asheet of rubber) around the tooth.-An access hole will then be drilled into the tooth. The pulp along with bacteria, the decayed nervetissue and related debris is removed from the tooth.-Once the tooth is thoroughly cleaned, it is sealed. Some dentists like to wait a week before sealing thetooth.-The ﬁnal step may involve further restoration of the tooth. Because a tooth that needs a root canaloften is one that has a large ﬁlling or extensive decay or other weakness, a crown, crown and post, orother restoration often needs to be placed on the tooth to protect it, prevent it from breaking, andrestore it to full function.
Digestive System Vocabulary Recap-Hiatal Hernia: A condition in which part of the stomach sticks upward into the chest, through anopening in the diaphragm.-Intravenous Cholecystography: Radiography of the gallbladder and bile ducts, using a radiopaquedye as contrast medium.-Gastroscope: A ﬁberoptic instrument for examining the interior of the stomach.-Root Canal: A treatment used to repair and save a tooth that is badly decayed or becomes infected.