Chapter 3 (1) Flashcards
(176 cards)
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