NEET BIOLOGY

Detailed explanation-1: -G-cells are neuroendocrine cells responsible for the synthesis and secretion of gastrin. They are primarily found in the pyloric antrum but can also be found in the duodenum and the pancreas. They secrete gastrin when stimulated directly by vagal efferent neurons as well as GRP neurons.

Detailed explanation-2: -Scattered among these secretory epithelial cells are G cells, which are endocrine cells that synthesize and secrete the hormone gastrin. Being a hormone, gastrin is secreted into blood, not into the lumen of the stomach.

Detailed explanation-3: -Gastrin is a hormone the stomach produces that stimulates the release of gastric acid. It is located in the G cells in the lining of the stomach and upper small intestine.

Detailed explanation-4: -Gastrin is primarily made in the G cells in your stomach, but some is made in the pancrease, too. It stimulates your stomach to make gastric acid.