click below
click below
Normal Size Small Size show me how
ch 34 GI fxn terms
GI fxn terms
Question | Answer |
---|---|
absorption | small molecules, vitamins, and minerals pass thru walls of sm & lg intestine into blood stream |
achalasia | absence of peristalsis of lower esophagus, results in dysphagia, regurgitation and pain |
amylase | enzyme that aids in digestion of STARCH |
anus | last section of GI, outlet for waste |
chyme | mix of food/saliva, salivary enzymes, & gastric secretions. produced by food passing thru mouth, esophagus & stomach |
digestion | digestive enzymes, secretions, food mix. proteins, fats, and sugars broken down into smaller molecules |
dyspepsia | indigestion; upper abdominal discomfort @ with eating |
elimination | occurs after digestion and absorption, when waste products are evacuated from body |
esophagus | collapsible tube connecting mouth/stomach, food passes thru |
GI fibroscopy | intubation of a part of the GI system with flexible, lighted tube to assist in Dx and Tx of diseases |
hydrochloric acid | secreted by glands in stomach; mixes with chyme, to break down to absorbable molecules and aid in destruction of bacteria |
ingestion | food taken into GI tract via mouth and esophagus |
intrinsic factor | gastric secretion that combines with VitB12 so that the vitamin can be absorbed |
large intestine | portion of GI tract, receives waste material from sm intestine, absorption continues & elimination begins ascending / transverse / descending / sigmoid / rectum |
lipase | enzyme aids in digestion of fats |
pepsin | gastric enzyme important in protein digestion |
small intestine | longest part of GI tract. duodenum, jejunum, ileum. chyme passes thru, begins to be absorbed |
stomach | distensible pouch into which food bolus passes to be digested by gastric secretions |
trypsin | enzyme that aids in digestion of proteins |
scintigraphy | radionuclide testing use of isotopes (technetium, iodine, indium) |