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Gastric Physiology Quiz Stats

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Question Answer % Correct
T/F: Proton pump inhibitors bind irreversibly to the H/K proton pump.True
63.5%
T/F: In some cases of peptic ulcer disease, acid from the stomach erodes the D cells of the stomach preventing the brake mechanism for acid production.True
61.9%
T/F: An increase in pH (basicity) slows gastric emptying.False. Acidity slows rate
60.3%
T/F: The stomach is the major site for digestion.False. The small intestine is the main site of digestion
58.7%
T/F: ECL cells can be activated by acetylcholine or gastrinTrue
58.7%
these cells produce HCl and intrinsic factorparietal cells
57.1%
T/F: After a large meal, the alkaline tide (removal of bicarbonate from the parietal cell) causes an increase in the pH of the blood.True
57.1%
T/F: Large volumes in the stomach increase gastric emptyingTrue
57.1%
T/F: Rate of gastric emptying increases with rectal and colonic distention.False
57.1%
Secretin ____ (promotes or inhibits) gastric emptyinginhibits
57.1%
T/F: Tagemet and cimetidine prevent acid production by blocking H1 histamine receptorsFalse. They block H2 receptors
54%
CCK ____ (promotes or inhibits) gastric emptyinginhibits
54%
Hypoglycemia ___ (increase or decreases) gastric emptying.increases
52.4%
T/F: Ghelin is released during fasting which stimulates appetiteTrue
52.4%
T/F: The parietal cell can be activated by Acetylcholine, histamine, or gastrin.False. All 3 must be bound to activate the parietal cell.
50.8%
T/F: Prilosec or Omeprazole acts at the basolateral membrane of the parietal cell.False. It acts at the proton pump at the apical membrane
49.2%
T/F: Ileal fat increase gastric emptying.False
49.2%
these cells produce gastrinG cells
46%
these cells produce somatostatinD cells
46%
essential for binding and absorption of vitamin B12intrinsic factor
46%
H2 blockers prevent the binding of ____ to prevent the production of acid.histamine
46%
Which histamine receptor is found on the basolateral membrane of the parietal cell?H2
41.3%
Peptide tyrosine-tyrosine (PYY) and glucagon like peptide (GLP1 and GLP2) ____ (stimulates/inhibits) gastric emptyinginhibits
41.3%
2nd messenger involved in activation of the parietal cellcAMP
38.1%
made by the S cells of the duodenumsecretin
38.1%
these cells produce pepsinogen and gastric lipasechief cells
36.5%
prilosec or omeprazole acts by inhibiting what?H/K ATPase
36.5%
what activates pepsinogen?acid
34.9%
Question Answer % Correct
this hormone acts at the hypothalamus to suppress appetiteleptin
34.9%
leptin is release by which type of tissue?adipose
33.3%
The movement of Cl into the parietal cell is coupled to the movement of which ion out of the cell?bicarbonate
31.7%
All stomach cell types are activated by the neurotransmitter (from the enteric nervous system) Acetylcholine, except which cell?G cell
30.2%
This type of drug inhibits prostaglandin related defense mechanisms within the stomachNSAIDs
30.2%
responsible for getting H+ ions into the lumen of the stomachH/K ATPase
28.6%
these cells produce histamineECL cells
27%
These cells in the stomach are activated by the H+ions in the stomach to reduce the release of gastrinD cells
25.4%
made by the I cells of the duodenumcholecystokinin( CCK)
23.8%
enzyme important for the production of protons and bicarbonate in the parietal cellcarbonic anhydrase
22.2%
this hormone acts on the G cell in the antrum of the stomach to inhibit the release of gastrinsomatostatin
19%
The superficial epithelial cells along with which other cell type in the stomach act to lubricate and protect the stomach wall?mucous neck cells
17.5%
which two products of oxidative phosphorylation are important for the production of stomach acid.ATP and carbon dioxide
17.5%
failure of the pyloric sphincter to relax for gastric emptying... leads to projectile vomitingpyloric stenosis
17.5%
P/D1 cells are located where?fundus of the stomach
17.5%
Cl ions are transported into the parietal cell using which type of transport protein?antiporter
15.9%
The gland of the stomach is known an ____ gland.oxyntic
14.3%
Cl ions are transported into the lumen of the stomach using which type of transport protein?symporter
14.3%
2 causes of peptic ulcersNSAIDs and helicobacter pylori
12.7%
occurs due to a defiency in vitamin B12, which inhibits the body's ability to go through erythropoesispernicious anemia
11.1%
P/D1 cells release what hormone?ghrelin
11.1%
How does potassium get out of the parietal cell?Cl/K symport
7.9%
occurs due to uncontrolled gastric emptying due to the lack of feedback inhibition by the duodenum and undigested food makes it to the colondumping syndrome
7.9%
pespinogen and HCl are released into the lumen of the stomach... where is histamine released?lamina propria
6.3%
Nutrients in the ileum and the colon influence gastric emptying through the _____ mechanismileal brake mechanism
6.3%
severely delayed gastric emptying or no emptyinggastroparesis
6.3%
___ are hormones released by the duodenum and cause feedback on stomach to decrease gastric emptying and secretionsenterogastrones
1.6%

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Ingredients in Pesto

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If another sauce is pretending to be pesto, do you call it an impester?
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Created Mar 25, 2012ReportNominate
Tags:Physiology

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