Chapter 3 (1) Flashcards
define gastroenterology
the medical specialty that studies the anatomy and physiology of the gastrointestinal system
mechanical digestion
breaks up food with physical force and movement
mastication
tearing, chewing and grinding of food by the teeth
deglutition
swallowing food
peristalsis
movement of food via muscular contractions
what is anorexia?
decreased appetite
orex/o-
appetite
what is dysphagia?
difficult or painful eating or swallowing
phag/o-
eating or swallowing
what is polyphagia?
excessive overeating
what is glossitis?
infection or inflammation of the tongue
gloss/o-
tongue
what is sialolithiasis?
presence of stone in a salivary gland that blocks saliva and causes swelling
sial/o-
saliva
lith/o-
stone
what is stomatitis?
inflammation of the oral mucosa
stomat/o-
mouth
what is dyspepsia?
epigastric pain; indigestion
peps/o-
digestion
what is gastritis?
inflammation of the stomach
what is esophageal varix?
swollen, protruding vein in the esophageal mucosa
define varix
dilated, swollen vein in the mucosa
define gastroenteritis
infection or inflammation of the stomach and intestines
define gastroesophageal reflux disease
chronic irritation due to reflux of stomach acid into the esophagus; due to failure of esophageal sphincter to close
define pyrosis
temporary heartburn; irritation of the esophagus due to reflux of stomach acid
pyr/o-
burning, fire
define hematemesis
vomiting of blood
hemat/o-
blood
-emesis
vomiting
define nausea & vomiting
nausea is unpleasant, queasy feeling in stomach; vomiting is expulsion of stomach contents through mouth
define peptic ulcer disease
chronic irritation and erosion of the mucosa due to an ulcer
where can you get a peptic ulcer?
stomach, esophagus, duodenum
what causes peptic ulcer disease?
main: H. pylori
other causes: HCl, stress and drugs
define adenocarcinoma
cancerous tumor of the stomach that begins in the mucosal glands; often caused by H. pylori
aden/o-
gland
carcin/o-
cancer
define ileus; what does the word ileus mean?
absence of normal peristalsis
ileus means to roll; colic
causes of ileus
mechanical obstruction, infection, trauma, post-op from surgery
define intussusception
telescoping of one intestinal segment inside another
intussuscept/o-
receive within
define volvulus / malrotation
twisting or rotating of the small intestine
volvere
to roll
mal-
bad
rotat/o-
rotate
define appendicitis
inflammation and infection of the appendix
define colon cancer
cancerous tumor of the colon that develops when colonic polyps or ulcerative colitis become cancerous
define diverticulum
weakness in the colon wall forms a pouch
define diverticulitis
inflammation due to feces getting trapped in diverticulum; often causes by low fiber diet
define gluten sensitivity enteropathy
celiac disease; autoimmune disorder and toxic reaction to gluten, damages small intestine
divert (Latin)
deviation
define inflammatory bowel disease
chronic inflammation of parts of the small and large intestines
what are two subsets of inflammatory bowel disease?
Crohn disease: affects ileum and colon
ulcerative colitis: affects colon and rectum; can cause ulcers
define irritable bowel syndrome
condition with cramping, pain, diarrhea, bloating, constipation, and excessive mucous but no inflammation
define polyposis
numerous polyps: fleshy, benign growths in the mucosa
polyp-
polyp
define hemorrhoids
swollen, protruding veins in the rectum or anus
hemorrh/o-
flowing of blood
-oid
resembling
define proctitis
inflammation of the rectum due to radiation treatments for cancer
proct/o-
rectum and anus
define rectocele
hernia in wall of rectum; causes rectal wall to protrude into vaginal wall
rect/o-
rectum
-cele
hernia
define constipation
failure to have regular bowel movements
constip/o-
compacted feces
define diarrhea
abnormally frequent, loose and watery feces; involves increased peristalsis
dia-
through
-rrhea
discharge or flow
define flatulence
excessive amounts of gas in the stomach or intestines
flatul/o-
flatus/gas
-ence
state
define hematochezia
blood in feces
chez/o-
pass feces
define steatorrhea
feces that contains undigested fats die to lack of enzyme lipase
steat/o-
fat
define hernia
latin for rupture
two types of hernia:
hiatal hernia: bulging of the stomach through the diaphragm
inguinal hernia: occurs in groin
what does bright red blood in the feces indicate
lower GI bleed
what does melena (dark blood) in the feces indicate?
stomach or esophagus bleed
define peritonitis
inflammation or infection of peritoneum that occurs when the stomach or duodenal wall breaks or the appendix ruptures
periton/o-
peritoneum
what is ascites?
accumulation of ascitic fluid in the abdominopelvic cavity (liver isn’t functioning properly)
what is cirrhosis?
chronic, progressive inflammation and degeneration of the liver
cirrh/o-
yellow
what is hepatomegaly?
enlargement of the liver
what is hepatitis?
infection and inflammation of the liver by the hepatitis virus
what is jaundice?
yellow discoloration of skin and whites of eyes due to bilirubin in the blood
jaund/o-
yellow
-ice
state
what is hepatoma?
(liver cancer) secondary cancer that began elsewhere and metastasized in the liver
bili/o-
bile
chol/e-
bile
cholecyst/o-
gallbladder
cholangi/o-
bile duct
choledoch/o-
common bile duct
what is cholangiocarcinoma
gallbladder cancer
what is cholangitis
inflammation of the bile ducts due to cirrhosis or gallstone
what is cholecystitis
inflammation of the gallbladder due to blockage of the cystic duct by a gallstone
what is cholelithiasis?
gallstones in the gallbladder
what is choledocholithiasis?
gallstones in the common bile duct
what is adenocarcinoma?
pancreatic cancer
what is pancreatitis?
inflammation or infection of the pancreas
what is albumin?
major protein molecule in the blood, produced by the liver, low level may indicate liver disease
what is culture & sensitivity?
fecal test in which bacterial colonies are grown in culture for identification and testing of antibiotics
what is a fecal occult blood test?
fecal test to determine if non-visible blood is present in feces
what is gastric analysis?
measures HCl in the stomach; uses nasogastric tube to collect stomach contents
what is a liver function test?
blood tests giving comprehensive picture of liver function
what is ova and parasites?
fecal test that determines whether parasites are in the GI system
what is a barium enema?
x-rays taken after injection with liquid contrast medium barium into the rectum/colon
what is a cholangiography?
x-ray taken after injection with iodinated contrast dye to outline bile ducts
what is computerized axial tomography?
x-rays taken in successive slices to create images of abdominal organs and structures
what is a flat plate of the abdomen?
x-ray taken without contrast dye as the patient lies supine
gallbladder ultrasound
picture of gallbladder to show wall thickening or stones
what is magnetic resonance imaging?
images taken in successive slides using strong magnetic field
what is an upper gastrointestinal series?
continuous, moving x-ray taken after ingestion of liquid barium; visualization of upper GI tract
what is a nasogastric tube?
tube through nose and into stomach to remove stomach contents or give food/drugs
what is an enema?
insertion of water tube into rectum to stimulate bowel movement
what do antacid drugs do?
neutralize stomach acid; treats heartburn
what do antibiotic drugs do?
treat bacterial infections
what do antidiarrheal drugs do?
treat diarrhea by slowing down peristalsis to increase water absorption
what do antiemetic drugs do?
treats nausea and vomiting
what to H2 blocker drugs do?
block histamine receptors in stomach to treat GERD and PUD
what do laxative drugs do?
treat constipation by softening feces (pulls water into bowel)
what do proton pump inhibitor drugs do?
block production of HCl in stomach to treat GERD and PUD (Prilosec)
what is abdominocentesis?
removal of fluid from abdomen using needle
centesis-
procedure to puncture
what is an appendectomy?
removal of infected appendix
what is bariatric surgery?
surgery for severe obesity that limits food intake and nutrient absorption
what is a biopsy?
removal of small piece of tissue from an ulcer,polyp, growth; examined for cancerous cells
what is bowel resection and anastomosis?
removal of a portion of diseased intestine (resection) and joining of the intestine back together (anastomosis)
what is a cholecystectomy?
removal of the gallbladder
what is choledocholithotomy?
surgery to make an incision in the common bile duct to remove gallstone
what is a colostomy?
removal of diseased part of colon and creation of opening in abdominal wall for feces to pass through
what is an endoscopy?
examination of GI system with a flexible endoscope
what is a colonoscopy?
process of using an instrument to examine the colon
what is an exploratory laparotomy?
exploration of abdominopelvic cavity for evidence of disease or trauma
what is a gastrectomy?
removal of all or part of stomach due to cancer
what is gastrostomy?
procedure to create opening in the abdominal wall to place a feeding tube
-stomy
surgically created opening
what is hemorrhoidectomy?
removal of hemorrhoids from rectum or anus
what is a herniorrhaphy?
closure (suturing) of defect in abdominal muscle wall where there is a hernia
herni/o-
hernia
-rrhaphy
process of suturing
what is a jejunostomy?
creation of an opening from the abdominal wall into jejunum to insert feeding tube
what is liver transplantion
removal of severely damaged liver and insertion of donor liver
what is a polypectomy?
removal of polyps from the colon
ABD
abdomen
ALP
alkaline phosphate
ALT
alanine aminotransferase; alanine transaminase
AST
aspartate aminotransferase; aspartate transaminase
BE
barium enema
BM
bowel movement
C&S
culture & sensitivity
CAT, CT
computerized axial tomography
CBD
common bile duct
CLO
campylobacter-like organism
EGD
esophagogastroduodenoscopy
ERCP
endoscopic retrograde cholangiopancreatography
GERD
gastroesophageal reflux disease
GGTP, GGT
gamma-glutamyl transpeptidase
GI
gastrointestinal
HAV
hepatitis A virus
HBV
hepatitis B virus
HCV
hepatitis C virus
IBD
inflammatory bowel disease
IBS
irritable bowel syndrome
LFTs
liver function tests
MRI
magnetic resonance imaging
N&V
nausea and vomiting
NG
nasogastric
O&P
ova and parasites
OCG
oral cholecystogram; oral cholecystography
PEG
percutaneous endoscopic gastrostomy
PEJ
percutaneous endoscopic jejunostomy
PUD
peptic ulcer disease
UGI
upper gastrointestinal (series)