Science Quiz / Gastric Physiology

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Can you name the Gastric Physiology?

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

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