Brunner gland is characteristics feature of A. Jejunum of small intestine B. Ileum C. DuodenumD. Fundic region stomach

Brunner's glands are characteristic features of the duodenum, which is part of the small intestine. They are named after the Swiss anatomist, Johann Conrad Brunner, who first described them. Brunner's glands are located in the submucosa, which is the layer of tissue beneath the inner lining (mucosa) of the duodenum.

These glands are responsible for producing mucus-rich secretions that help protect and lubricate the lining of the duodenum. The mucus also neutralizes the acidic chyme (partially digested food) coming from the stomach, creating a more favorable environment for the digestive enzymes produced by the pancreas, which are also delivered into the duodenum.

Therefore, the correct answer is C. Duodenum.