chapter 3 Flashcards
chemical aspect of digestion
breaking chemical bonds in ingested foods and beverages into absorbable substances like glucose, amino acids, and fatty acids
sources of digestive juices to assist with chemical digestion
salivary glands
stomach
pancreas
liver
small intestine
salivary glands have
starch digesting enzymes and lipid digesting enzymes
stomach has
hydrochloric acid and protein digesting enzymes
pancreas has
bicarbonate ions and a variety of digestive enzymes released into the small intestine
live produces and releases
bile into the small intestine
small intestine is
a variety of digestive enzymes
digestive tract bacteria
ferment many indigestible fibers
digest tract bacteria breaks down
undigested protein and unabsorbed amino acids and bile
digestive tract bacteria chemically alter
certain drugs and phytochemicals
heartburn may be caused by a
weak lower esophageal sphincter
ulcers are
irritated or inflamed defect or excavation of the organ/tissue surface by the acidic gastric juices
possible causes of ulcers:
medications, alcohol, helicobacter pylori
symptoms of an ulcer
abdominal pain
vomiting,
fatigue
bleeding
general weakness
suggested treatments of an ulcer
medications
limiting or avoid alc, caffeine, spices and acidic foods
possible causes of gallstones
a diet low in fiber and chronically inadequate fluid intake resulting in abnormally thick- concentrated bile solution
symptoms of gallstones
fever
nausea
vomiting
cramps
hernias are formed when part or all of an organ
protrudes through the body chamber wall that contains the organ
constipation causes
inadequate amounts of fiber and fluids
physical inactivity
diabetes
depression
stress
diarrhea causes
contaminated water
stress
excessive fiber
some antibiotics
IBS is a functional disorder affecting
intestinal rhythm and transit time of chyme and fecal materials
symptoms of IBS
alternating patterns of constipation and diarrhea
inflammation
pain
gas
abdominal cramping
bloating
possible causes of IBS
low fiber diets
physical inactivity
stress
inadequate sleep
intestinal motility
suggested treatments of IBS
small meals containing fiber and water
avoidance of irritating foods
develop regular exercise habits
good sleep habits
stress management