In which part of the stomach are G cells found, which produce gastrin?

G cells are primarily located in the pyloric region of the stomach, which is responsible for producing the hormone gastrin. Gastrin plays a vital role in the digestive process by stimulating the secretion of gastric acid from parietal cells. This acid is crucial for breaking down food and creating an optimal environment for digestive enzymes to function.

The body and fundus of the stomach primarily house parietal cells and chief cells, which are responsible for producing gastric acid and digestive enzymes like pepsinogen, respectively. The cardia region serves mainly as an entry point for food from the esophagus and contains mucous-secreting cells that help protect the stomach lining rather than endocrine functions like those seen in G cells.

Therefore, the answer indicating the presence of G cells in the pyloric region aligns with the physiological understanding of where gastrin is produced, underlining the important regulatory role these cells play in the digestive process.