"Sub-mucosal glands" are present in?: (A) Duodenum, (B) Colon, (C) Anal canal, (D) Stomach
Answer is A. Duodenum and oesophagus have submucosal glands. The submucosa of the duodenum is densely packed with mucous Brunner&;s glands.The oesophagus has occasional submucosal mucous glands.Reference: Chaurasia; 6th edition