Digestive physiology
This hormone stimulates the release of bile from the gallbladder. CCK incretin gastrin secretin
CCK
Which statement is NOT true of parietal cell activity? Carbonic anhydrase is an essential enzyme to the cell's function Bicarbonate diffuses into the bloodstream Histamine increases the parietal cell's activity Protons passively diffuse into the stomach lumen
Protons passively diffuse into the stomach lumen
Which of the following does NOT reduce the symptoms of, or treat, acid reflux? Antacids Histamine-receptor blockers Proton pump inhibitors Stimulating the parasympathetic system
Stimulating the parasympathetic system
Histamine release is stimulated by hormones from ECL cells. causes G cells to produce gastric acid. directly acts on Parietal cells. occurs from Parietal cells.
directly acts on Parietal cells
Bicarbonate is produced by the ___ cells of the pancreas. alpha duct acinar beta
duct
The gastric phase of gastric secretion is triggered by the entry of chyme into the large intestine. entry of food into the stomach. release of cholecystokinin and secretin by the small intestine. entry of chyme into the small intestine. sight, thought, or smell of food.
entry of food into the stomach.
This hormone stimulates the release of bicarbonate from the duodenum. CCK incretin gastrin secretin
secretin
In response to the acid in the duodenum, the blood levels of secretin rise. enterocrinin fall. gastrin rise. cholecystokinin fall. All of these answers are correct.
secretin rise
Distention and the presence of peptide in the stomach stimulate the enteric nervous system. the long reflex. hormone release that slows gastric motility. release of enzymes and bicarbonate from the pancreas.
the enteric nervous system.
Absorption of amino acids in the small intestine requires emulsification of dipeptides by bile salts. reconstructing the amino acids into proteins. simple diffusion across the cell membrane. the presence of amino acid transporters.
the presence of amino acid transporters.
