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7 Cards in this Set

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large intestine
primary organ in BM. function include the completion of absorption, the manufacture of certain vitamins, the formation of feces, and the expulsion of feces
peristalsis
-autonomic nervous sytem innervates the muscles of the colon. the parasympathetic NS stimulates movement, while the sympathetic inhibits movement
contractions of the circular and longitudinal muscles of teh intestine occur every 3-12 minutes. moving waste products along the length of the intestine continuously.
-1/3 to 1/2 of ingested food is excreted within 24hrs, the rest within 24-48 hours.
valsalva maneuver
act of bearing down: results in a decreased blood flow to the atria and ventricles, lowers cardiac output. once bearing down ceases, the pressure is lessened and a larger than normal amount of blood returns to the heart---dangerous for hypertensive pts.
paralytic ileus
direct manipulation of the bowel during surgery inhibits peristalsis. Normally lasts 24-48hrs. if pt is receiving narcotics for pain relief, it can exacerbate the situation.
endoscopy
direct visualization of the lining of a hallow body organ.
colonoscopy: visual examination of the lining of the large intestine with a flexible fiber optic endoscopy.
ileostomy
allows liquid fecal content from teh ileum of the small intestine to be eliminated through the stoma
colostomy
permits formed feces from teh colon to exit through the stoma.