Question

Which of the following hormones exhibit stimulatory effects?

• A. Gastrin
• B. Histamine
• C. Cholecystokinin
• D. All of these

Answer 1

The correct option is D All of these

Gastrin is secreted by the G-cells (gastrin cells) of the stomach. It is released in the pyloric region of the stomach. It acts on the gastric glands of the stomach and stimulates the secretion and release of gastric juice. It also stimulates gastric motility or the movement of chyme.
Histamine is secreted by the stomach. It acts on the stomach and stimulates the parietal cells to release HCl.
Cholecystokinin (pancreozymin) is secreted by the epithelium of the entire small intestine. In the pancreas, it stimulates the release of pancreatic juice. In the gallbladder, it stimulates the release of bile.