Digestive System Review Flashcards
Peritoneum
Large serous membrane that covers the organs in the abdomen and lines the abdominal cavity wall; secretes fluids to prevent friction
Peristalsis
Involuntary muscle contractions that produce wave-like movements to move food along from esophagus through intestines
Hematemesis
Vomiting blood
Hematochezia
Bright red blood in feces
Melena
Dark, tarry stool resulting from blood
Colonoscopy
Lighted scope through rectum to intestines - search for polyps
Colostomy
Surgical procedure in which colon is diverted to an opening in skin; feces can leave body through opening
Dental caries
Infection that damages teeth
Peptic ulcer
Erosive gastritis - ulcers in stomach or duodenum that break down stomach lining and result in hemorrhage
Pernicious anemia
Decrease in RBC because of lack of B12 absorption in GI tract
Celiac disease
Gluten enteropathy - intolerance of/allergy to the protein gluten
Polyps
Fingerlike projections in the wall of the intestine
Diverticula
Pouches in the wall of the intestines where the circular and longitudinal muscle bands meet
Diverticulosis
The condition of pouches in colon
Diverticulitis
Inflammation of the diverticula
S/S of GI pathologies
Hemorrhage, performation, motility, abdominal pain, burning pain, heartburn, belching, nausea and vomiting, flatulence, loss of appetite, weight loss, abdominal cramping, electrolyte loss, constipation, diarrhea, malaise
4 locations of hernias/location
Inguinal - Inguinal canal
Femoral - Femoral Canal
Periumbilical - through umbilicus (navel)
Hiatal - pushes through diaphragm into thoracic cavity
GERD
Gastric Esophageal Reflux Disease - caused by weakness in sphincter muscles, slow-emptying stomach, hiatal hernia
Esophageal varies
Dilated varicose veins of the esophagus
Peritonitis is associated with the failure of 2 organs…
Liver failure, kidney failure
2 causes of peptic ulcer
NSAIDs, Helicobacter pylori bacteria
2 types of gastritis
Erosive - Inflammation characterized by lesion
Non-erosive - chronic
Crohn’s Disease
Chronic disease that affects the small intestine and has exacerbations and remissions
2 structures affected by ulcerative colitis
Colon, rectum
2 type/diseases of IBD and how do they differ
Crohn’s Disease - Small intestine
Ulcerative Colitis - Large intestine and colon
What GI disorder does not cause damage to affected organ?
Irritable Bowel Syndrome (intestine)
Compare and contrast IBD and IBS
IBD - inflammation of bowel, chronic lesions, damages intestines
IBS - motility issues of bowels, not specific, does not damage intestine
Dysentery: cause and characteristic symptom
Cause - Microorganisms
Characteristic symptom - Massive bloody diarrhea
Ileus
Blockage of intesting
Adhesions
Abnormal linkages
Volvulus
Twisting of intestine
Intussuception
Telescopy of intestine (shirt sleeve)
Hemorrhoids - What they are, what is the cause?
Inflammation of nodules of veins in rectum or anus; Caused by increased venous pressure
Prolapsed rectum - What it is, what is the cause?
Protrusion of rectum beyond the anus; Caused by increased abdominal oressure with weak pelvic floor muscles