Duodenal glands (Brunner glands) that secrete a viscous mucus into the small intestine are located in the
A) serosa.
B) adventitia.
C) mucosa.
D) submucosa.
E) muscularis interna.

Question

Quizplus · Accepted Answer

Duodenal glands, also known as Brunner's glands, are located in the submucosa of the duodenum and secrete alkaline mucus to protect the intestinal lining and neutralize gastric acid.

Duodenal Glands (Brunner Glands) That Secrete a Viscous Mucus into the Small