DIAGNOSTIC RADIOGRAPHY · NTA LEVEL 4 · SEMESTER ONE
PATHOPHYSIOLOGY OF Digestive system
CRT04101 · Anatomy, Physiology and Pathology
Study PATHOPHYSIOLOGY OF Digestive system using the sections below. Use the topic navigation to continue through Anatomy, Physiology and Pathology.
Disorders of Gastrointestinal System
Features of Gastrointestinal Pathologies
Regardless of the cause and type of a disease Gastrointestinal (GI )pathologies have the following presenting features:
- Abdominal pain
- Gastrointestinal bleeding
- Diarrhoea
- Steatorrhea=fatty stool
- Melena=Black stool (upper GI bleeding)
- Haematochezia=(fresh blood in stool)
- Hematemesis=Vomiting of blood
- Constipation
- Nausea
Vomiting
Dysphagia –difficult in swallowing
- Odynophagia –painful swallowing
- Gastroesophageal reflux
- Anorexia
Weight loss
Gastroesophageal Reflux Disease (GERD)
The terms heartburn, acid regurgitation, sour stomach, and bitter taste are all used to describe GERD symptoms Reflux occurs when the oesophageal epithelium is exposed to gastric secretions Some degree of gastric reflux is considered normal, but symptoms occur when the mucosa's tolerance to acid is exceeded
PATHOPHYSIOLOGY OF Digestive system
In addition to the typical symptoms of heartburn or chest pain, extra-oesophageal manifestations of GERD include laryngitis, asthma, and chronic cough GERD develops when acidic gastric contents reflux into the oesophagus and remain there long enough to overcome the resistance of the oesophageal epithelium.
PEPTIC ulcer Disease
- Gastric ulcer
Duodenal ulcer
Oesophageal cancer
Congenital GI malformation
Congenital hypertrophic pyloric stenosis
Gastric outlet obstruction (pyloric stenosis)
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