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The parietal cell in the stomach secrets gastric acid, which is hydrochloric acid (HCl). The Secretion of HCl by the parietal cell is stimulated by receptors for acetylcholine (muscarinic), histamine, and gastrin. The enterochromaffin cells (ECL) also have gastrin receptors and muscarinic receptors. ECL cells release histamine which reacts with H2 receptors (histamine 2 receptors) on parietal cells. Somatostatin is released by delta cells and decreases histamine release by ECL cells.
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Why stomach fullness?
gas secretion
Secretion of stomach?
Gastric Acid
Is tubular secretion effective in controlling blood pH?
True!
What is the parasympathetic and Sympathetic effect on the stomach?
The parasympathetic is stimulatory to stomach , increase the gastric secretion and motility while the sympathetic is inhibitory , decrease the gastric secretion and motility
What is the name of one organ that produces a secretion?
The stomach.
A powerful stimulant of acid secretion in the stomach is?
Histamine
What is gastrorrhexis?
excessive secretion of gastric juice or mucus in the stomach
What is the main stimulus for bile secretion from the gallbladder?
Fat in the stomach.
What increases acid secretion in the stomach blocked by cimetidine?
Histamine
What hormone is secreted in response to thepresence of protein in the stomach?
Gastrin is produced in the stomach and starts secretion.
Select the correct statement about the regulation of gastric secretion?
ANSWER IS: Gastric secretion can be stimulated before food has entered the mouth.A.Gastric secretion can be stimulated before food has entered the mouth.B.Gastric secretion is enhanced by very low pH (below a pH of 2)C.The presence of food in the stomach prevents hormonal control of gastric secretion.D.Vagus stimulation of the stomach results in decreased secretion of gastric juice.
What stimulate gastric secretion?
Gastric acid secretion is regulated by hormones in the digestive system. This hormone, gastrin is secreted by the lining of the stomach.
