Gastric Physiology

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Can you name the Gastric Physiology?

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

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Created Mar 25, 2012ReportNominate
Tags:physiology