Gastric Physiology

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Can you name the Gastric Physiology?

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

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Created Mar 25, 2012ReportNominate
Tags:physiology