GI
Terms
undefined, object
copy deck
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Myenteric plexus
Submucosal
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Auerbach's. Between outer longitudinal and inner circular muscle. controls motility.
Meisner's. Between mucosa and outer muscles. controls secretions.
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brunner's glands
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submucosal glands in duodenum that secrete alkaline mucous
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low vs high salivary flow rate
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low=hypotonic (more time to reabsorb salts)
high=isotonic
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actions of secretin
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from S cells in duodenum. increase HCO3 release, decrease H+
- rate limiting step of carb metabolism
- brush border oligosaccharide hydrolase
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gastric vs duodenal ulcers
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gastric=worse with eating
duodenal=better after eating. 100% association w/ H.pylori
- virchow's node
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hard supraclavicular node from stomach mets
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skip lesions
cobblestone mucosa
mucosa & submucosa only
creeping fat
pseudopolyps
crypts abcesses
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Chron's
Chron's
UC
Chron's
UC
UC
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GI disorders in Down's
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hirschsprung's, duodenal atresia
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genetics of:
HNPCC
FAP
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MMR gene defect
APC tumor supressor gene defect
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tumor marker for colon cancer
- CEA (non-specific)
- tx for crigler-najjar type II
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less severe form, responds to phenobarbital
Type I is worse and babies die.
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rotor and dubin-johnson
- defective liver excretion of conjugated bilirubin
- which gall blader stones are radiopaque?
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pigment stones
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trousseau's vs courvoisier's sign
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trousseau=migratory thrombophlebitis
courvoisier=palpable gallblader