Science Quiz / Gastric Physiology

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Can you name the Gastric Physiology?

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CCK ____ (promotes or inhibits) gastric emptying
these cells produce pepsinogen and gastric lipase
T/F: The parietal cell can be activated by Acetylcholine, histamine, or gastrin.
Nutrients in the ileum and the colon influence gastric emptying through the _____ mechanism
essential for binding and absorption of vitamin B12
these cells produce somatostatin
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.
enzyme important for the production of protons and bicarbonate in the parietal cell
Cl ions are transported into the lumen of the stomach using which type of transport protein?
This type of drug inhibits prostaglandin related defense mechanisms within the stomach
T/F: Prilosec or Omeprazole acts at the basolateral membrane of the parietal cell.
P/D1 cells release what hormone?
these cells produce gastrin
these cells produce HCl and intrinsic factor
The superficial epithelial cells along with which other cell type in the stomach act to lubricate and protect the stomach wall?
Peptide tyrosine-tyrosine (PYY) and glucagon like peptide (GLP1 and GLP2) ____ (stimulates/inhibits) gastric emptying
2nd messenger involved in activation of the parietal cell
___ are hormones released by the duodenum and cause feedback on stomach to decrease gastric emptying and secretions
occurs due to a defiency in vitamin B12, which inhibits the body's ability to go through erythropoesis
T/F: An increase in pH (basicity) slows gastric emptying.
Which histamine receptor is found on the basolateral membrane of the parietal cell?
T/F: Ileal fat increase gastric emptying.
Hypoglycemia ___ (increase or decreases) gastric emptying.
H2 blockers prevent the binding of ____ to prevent the production of acid.
T/F: Ghelin is released during fasting which stimulates appetite
The movement of Cl into the parietal cell is coupled to the movement of which ion out of the cell?
prilosec or omeprazole acts by inhibiting what?
these cells produce histamine
P/D1 cells are located where?
failure of the pyloric sphincter to relax for gastric emptying... leads to projectile vomiting
T/F: Tagemet and cimetidine prevent acid production by blocking H1 histamine receptors
T/F: Large volumes in the stomach increase gastric emptying
How does potassium get out of the parietal cell?
2 causes of peptic ulcers
which two products of oxidative phosphorylation are important for the production of stomach acid.
These cells in the stomach are activated by the H+ions in the stomach to reduce the release of gastrin
this hormone acts on the G cell in the antrum of the stomach to inhibit the release of gastrin
Secretin ____ (promotes or inhibits) gastric emptying
T/F: The stomach is the major site for digestion.
what activates pepsinogen?
Cl ions are transported into the parietal cell using which type of transport protein?
T/F: Proton pump inhibitors bind irreversibly to the H/K proton pump.
made by the S cells of the duodenum
made by the I cells of the duodenum
leptin is release by which type of tissue?
responsible for getting H+ ions into the lumen of the stomach
T/F: ECL cells can be activated by acetylcholine or gastrin
pespinogen and HCl are released into the lumen of the stomach... where is histamine released?
this hormone acts at the hypothalamus to suppress appetite
All stomach cell types are activated by the neurotransmitter (from the enteric nervous system) Acetylcholine, except which cell?
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.
T/F: Rate of gastric emptying increases with rectal and colonic distention.
severely delayed gastric emptying or no emptying
occurs due to uncontrolled gastric emptying due to the lack of feedback inhibition by the duodenum and undigested food makes it to the colon
The gland of the stomach is known an ____ gland.

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Created Mar 25, 2012ReportNominate

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