This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small and Large intestine, Subject name: Anatomy
Brunner's gland is a histological finding of 
Select and explain. 
A. Esophagus, B. Stomach, C. Duodenum, D. Liver
C: Duodenum
Answer: C: Duodenum 
Explanation: Brunner's gland is a histological finding of duodenum which is present in submucosa which secretes mucus which is alkaline in nature and neutralises the acid in duodenum so that enzymes could work at their optimum pH.It also heals the ulcer by increasing mitotic activity. Peyer patches or Lymphoid follicles seen in Lamina propria.