SMALL INTESTINE CH

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Author:
RadTherapy
ID:
181140
Filename:
SMALL INTESTINE CH
Updated:
2012-11-02 00:17:27
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SMALL INTESTINE
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SMALL INTESTINE CH
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  1. The small intestine is a tubular organ that extends from the ____ to the opening of the large intestines, ____ found in the loewr right abdomen
    • pyloric sphincter
    • ileocecal valve
  2. Most of the absorption of the ____ occurs in the small intestine
    digestive processes
  3. Why is it called the SMALL intestines
    because the lumen is smaller than the large
  4. The small intestine is over ____ times as long as the large intestine
    4
  5. What are the 3 parts of the small intestine
    • duodenum
    • jejunum
    • ileum
  6. What is the 1st part of the small intestine that takes up 1st 10 inches and is the most fixed portion
    duodenum
  7. The duodenum begins at the ____ in the stomach and joins with the ____ posteriorly
    • pyloric opening
    • jejunum
  8. The head of the ____ lies in close proximity to the duodenum
    pancreas
  9. the duodenum receives gastric juices from the pancreas via the ____ and from the gall bladder and liver via the
    • pancreatic duct
    • bile duct
  10. The pancreatic and bile ducts converge at a single opening through the ____; also called ____
    • sphincter of Oddi
    • ampulla of vater
  11. The ____ extends from the duodenum to the ileum and is about 9ft in length
    jejunum
  12. Both the jejunum and the ileum are suspended from the posterior wall by a double layered fold of peritoneum called ____ which contains_____
    • mesentery
    • blood vessles, nerves and lymphatic vessles that supply the intestinal wall
  13. The ileum extends from the ____ to the junction with the large intestine at the _____, either in the right lower abdoment or in the pelvis
    • jejunum
    • cecum
  14. The _____ is the opening between the terminal part of the ileum and cecum
    ileocecal valve
  15. What are the tiny projections of mucous memebrance all throughout the small intestine and play an important role in mixing chyme with intestinal juice and in the absorption and digestive processes
    intestinal villi
  16. The villi are covered with ____ and contain a core of ____ containing blood capillaries and nerve fibers
    • simple columnar epithelium
    • connective tissue
  17. The presence of ____ enhance the process of absoprtion and create a brush like border and gently increase the surface area of the cells
    microvilli
  18. What functions to carry away substances absorbed by the villus
    blood and lymph capillaries inside the villi
  19. The ____ in the small intestine act to stimulate or inhibit the small intestine activities
    nerve fibers
  20. What is between the bases of the villi and are tubular intestinal glands
    crypts of lieberkuhn
  21. Where do stem cells for the columnar epithelium reside?
    Crypts of Lieberkuhn
  22. What are found in the mucosa of the small intestine?
    Collections of lymphatic tissue
  23. What are lymphatic tissues that are most numerous in the terminal ileum and become involved during infections such as typhoid fever and tuberculosis of the intestine
    Peyer's Patches
  24. How is chyme propelled through the small intestine
    Peristaltic waves
  25. Food moves slow through the small intestine about ____ to travel to the large intestine
    3-10 hours
  26. The small intestine is where we get most of our nutrients and is the MOST sensitive to radiation and can only take about ___ dose
    4000 cGy
  27. Why do we not normally treat the small intestine
    Because it is like hitting a moving target
  28. How are small intestinal tumors usually discovered?
    • upper GI
    • small bowel follow through
    • endoscopy
  29. Small intestinal ca is a rare carcinoma but tumore are generally found in the
    duodenum or 1st few jejunal loops
  30. 50% of the small intestinal lesions are called
    adenocarcinoma
  31. What are some disorders associated with small intestinal ca
    • Polyposis
    • Chrohn's disease
    • Gardner syndrome
  32. What are symptoms of small intestinal ca
    • obstruction
    • rectal bleeding
    • weight loss
    • weakness
    • bloating
    • abdominal pain
    • N&V
    • fever
  33. How can small intestinal disease spread
    • via direct entension, lymph or blood system
    • #1 LIVER
    • lungs
    • bone
  34. What are treatment options for small intestinal CA
    Surgery or chemo NO Radiation because of the motion of the organ and bowel sensitivity
  35. Which chemo drug is used for small intestinal CA
    5FU
  36. What is the 5 year survival rate for small intestinal CA
    < 20%
  37. Eventually food moves through the small intestine and pushed through the ____ into the large intestine
    ileocecal valve

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