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physiology - 3 Questions
The primary mechanism by which gastric acid secretion is regulated is through the feedback loop involving the pH of the stomach content. Low pH inhibits further acid secretion by decreasing the release of gastrin and the responsiveness of parietal cells to gastrin.
Deoxycholic acid is a secondary bile acid formed by bacterial conversion of cholic acid in the colon.
Leptin is a hormone secreted by adipose tissue that acts on the hypothalamus to inhibit food intake and increase energy expenditure. It plays a key role in regulating body weight and metabolism by signaling satiety and modulating the sensation of hunger and fullness.
MCQ