Ch14: digestive system Flashcards
absorption
passing of nutrients into the bloodstream
alimentary canal
muscular tube from the mouth to the anus; digestive tract; gastrointestinal tract
amino acid
chemical compound that results from digestion of complex proteins
amylase
enzyme that is part of pancreatic juice and saliva and that begins the digestion of carbohydrates
anal canal
part of the digestive tract extending from the rectum to the anus
anus
place at which feces exit the body
appendage
any body part (inside or outside) either subordinate to a larger part of having no specific central function
appendix
wormlike appendage to the cecum
bile
yellowish-brown to greenish fluid secreted by the liver and stored in the gallbladder; aids in fat digestion
bilirubin
pigment contained in bile
body
middle section of the stomach
bowel
intestine
cecum
pouch at the top of the large intestine connected to the bottom of the ileum
cheeks
walls of the oral cavity
chyme
semisolid mass of partially digested food and gastric juices that passes from the stomach to the small intestine
colon
major portion of the large intestine
defecation
release of feces from the anus
deglutition
swallowing
digestion
conversion of food into nutrients for the body and into waste products for release from the body
duodenum
top part of the small intestine where chyme mixes with bile, pancreatic juices, and intestinal juice to continue the digestive process
elimination
the conversion of waste material from a liquid to a semisolid and removal of that material via defecation
emesis
regurgitation
emulsification
breaking down of fats
enzyme
protein that causes chemical changes in substances in the digestive tract
epiglottis
movable flap of tissue that covers the trachea
esophagus
part of ailmentary canal from the pharynx to the stomach
fatty acid
acid derived from fat during the digestive process
feces
semisolid waste that moves through the large intestine to the anus, where it is release from the body
frenulum
mucous membrane that attaches the tongue to the floor of the mouth
fundus
upper portion of the stomach
gallbladder
organ on lower surface of liver; stores bile
glucose
sugar found in fruits and plants and stored in various parts of the body
glycogen
starch that can be converted into glucose
gums
fleshy sockets that hold the teeth
hard palate
hard anterior portion of the palate at the roof of the mouth
ileum
bottom part of the small intestine that connects to the large intestine
jejunum
middle section of the small intestine
large intestine
passageway in intestinal tract for waste received from small intestine to be excreted through the anus; also, place where water reabsorption takes place
lingual tonsils
two mounds of lymph tissue at the back of the tongue
lipase
enzyme contained in pancreatic juice
lips
two muscular folds formed around the outside boundary of the mouth
liver
organ important in digestive and metabolic functions; secretes bile
mastication
chewing
mesentery
membranous tissue that attaches small and large intestines to the muscular wall at the dorsal part of the abdomen
mouth
cavity in the face in which food and water is ingested
palatine tonsils
mounds of lymphatic tissue on either side of the pharynx
pancreas
digestive organ that secretes digestive fluids; endocrine gland that regulates blood sugar
papilla
tiny projection on the superior surface of the tongue that contains taste buds
pepsin
digestive enzyme in gastric juice
peristalsis
coordinated, rhythmic contractions of smooth muscle that force food through the digestive tract
pharynx
tube through which food passes to the esophagus
pylorus
narrow bottom part of the stomach
rectum
bottom portion of large intestine; connected to anal canal
reflux
regurgitation
regurgitation
backward flow from the normal direction
rugae
folds in stomach lining; irregular ridges of mucous membrane on the hard palate
saliva
fluid secreted by salivary glands; contains amylase
salivary glands
glands in the mouth that secrete fluids that aid in breaking down food
sigmoid colon
S-shaped part of large intestine connecting at the bottom to the rectum
small intestine
20 ft long tube that continues the process of digestion started in the stomach; place where most absorption takes place
soft palate
soft posterior part of the palate in the mouth
stomach
large sac between the esophagus and small intestine; place where food is broken down
stool
feces
throat
pharynx
tongue
fleshy part of the mouth that moves food during mastication (and speech)
uvula
cone-shaped projection hanging down from soft palate
villus
tiny, fingerlike projection on the lining of the small intestine with capillaries through which digested nutrients are absorbed into the bloodstream and lymphatic system
achalasia
inability of a muscle, particularly the cardiac sphincter, to relax
achlorhydria
lack of hydrochloric acid in the stomach
anal fistula
small opening in the anal canal through which waste matter can leak into the abdominal cavity
ankyloglossia
condition of the tongue being partially or completely attached to the bottom of the mouth
anorexia nervosa
eating disorder with extreme weight loss
aphagia
inability to swallow
appendicitis
inflammation of the appendix
ascites
fluid buildup in the abdominal and peritoneal cavities
bulimia
eating disorder with bingeing and purging
cheilitis
inflammation of the lips
cholangitis
inflammation of the bile ducts
cholecystitis
inflammation of the gallbladder
cholelithiasis
gallstones in the gallbladder
cirrhosis
liver disease, often caused by alcoholism
colic
gastrointestinal distress, especially of infants
colitis
inflammation of the colon
constipation
difficult or infrequent defecation
Crohn’s disease
type of inflammatory bowel disease with no ulcers
diarrhea
loose, watery stool
diverticula
small pouches in the intestinal walls
diverticulitis
inflammation of the diverticula
diverticulosis
condition in which diverticula trap food or bacteria
duodenal ulcer
ulcer in the duodenum
dysentery
irritation of the intestinal tract with loose stools.
dyspepsia
indigestion
dysphagia
difficulty in swallowing
enteritis
inflammation of the small intestine
eructation
belching
esophagitis
inflammation of the esophagus
fistula
abnormal opening in tissue
flatulence
gas in the stomach or intestine
flatus
gas in the lower intestinal tract that can be released through the anus
gallstones
calculi in the gallbladder
gastritis
inflammation of the stomach
gastroenteritis
inflammation of the stomach and small intestine
glossitis
inflammation of the tongue
halitosis
foul mouth order
hematemesis
blood in vomit
hematochezia
red blood in stool
hemorrhoids
swollen, twisted veins in the anus
hepatitis
inflammation or disease of the liver
hepatomegaly
enlarged liver
hepatopathy
liver disease
hiatal hernia
protrosion of the stomach through an opening in the diaphragm
hyperbilirubinemia
excessive bilirubin in the blood
icterus
jaundice
ileitis
inflammation of the ileum
ileus
intestinal blockage
intussusception
prolapse or collapse of an intestinal part into a neighboring part. One section collapses into another like a telescope
jaundice
excessive bilirun in the blood causing yellowing of the skin
melena
old blood in the stool
nausea
sick feeling in the stomach
obesity
abnormal accumulation of fat in the body
pancreatitis
inflammation of the pancreas
parotitis, parotiditis
inflammation of the parotid gland
peptic ulcer
sore on the mucous membrane of the digestive system; stomach ulcer or gastric ulcer
peritonitis
inflammation of the peritoneum
polyposis
condition with polyps, as in the intestines
proctitis
inflammation of the rectum and anus
sialoadenitis
inflammation of the salivary glands
steatorrhea
fat in the blood
ulcerative colitis
inflammation of the colon with ulcers
volvulus
intestinal blockage caused by the intestine twisting on itself
abdominocentesis
incision into the abdomen to remove fluid or relieve pressure
anal fistulectomy
removal of an anal fistula
anastomosis
surgical union of 2 hollow structures
appendectomy
removal of the appendix
Billroth’s I
excision of the pylorus
Billroth’s II
resection of the pylorus with the stomach
cheiloplasty
repair of the lips
cholecystectomy
removal of the gallbladder
choledocholithotomy
removal of stones from the common bile duct
cholelithotomy
removal of gallstones
cholelithotripsy
breaking up or crushing of stones in the body, especially gallstones
colectomy
removal of the colon
colostomy
creation of an opening from the colon into the abdominal wall
diverticulectomy
removal of diverticula
esophagoplasty
repair of the esophagus
gastrectomy
removal of part or all of the stomach
gastric resection or gastric bypass
removal of part of the stomach and repair of the remaining part
glossectomy
removal of the tongue
glossorrhaphy
suture of the tongue
hemorrhoidectomy
removal of hemorrhoids
hepatic lobectomy
removal of one or more lobs of the liver
ileostomy
creation of an opening into the ileum
liver biopsy
removal of a small amount of liver tissue to examine for disease
pancreatectomy
removal of the pancreas
paracentesis
incision into the abdominal cavity to remove fluid or relieve pressure
polypectomy
removal of polyps
proctoplasty
repair of the rectum and anus
antacid
agent that neutralizes stomach acid
antidiarrheal
agent that controls loose, watery stools
antiemetic
agent that prevents vomiting
antispasmodic
agent that controls intestinal tract spams
cathartic
agent that induces vomiting; also a strong laxative for emptying the bowels
laxative
agent that induces bowels to move in order to relieve constipation