Brunners Gland Cells

Brunner's Gland Cells are specialized cells found in the submucosa of the duodenum, the first part of the small intestine. Brunner's glands secrete alkaline mucus-rich fluid, which plays a crucial role in protecting the duodenal lining from the acidic contents arriving from the stomach. The alkaline secretion from Brunner's glands helps neutralize the acidic chyme, creating a more favorable environment for digestive enzymes to act and preventing damage to the duodenum. This protective function is particularly important for the proper functioning of pancreatic enzymes that enter the duodenum. The regulation of Brunner's gland secretion is influenced by various factors, including neural and hormonal stimuli such as the vagus nerve and the hormone secretin. Increased secretion is typically triggered by the presence of acidic chyme in the duodenum. While Brunner's glands are most abundant in the duodenum, they are not uniformly distributed and may vary among individuals. Histopathological examination of these glands is occasionally performed in the context of gastrointestinal disorders. Overall, Brunner's gland cells contribute to the protective and regulatory mechanisms of the digestive system.