Intestinal Glands MCQ - Practice Questions with Answers

Brunner’s Glands:

• These are present only in the duodenum.
• These are located in the submucosa.
• The main function of these glands is to produce a mucus-rich, alkaline secretion (containing bicarbonate).
• This mucus neutralizes the acidic content of chyme which is introduced into the duodenum from the stomach.
• It also provides an alkaline condition for optimal intestinal enzyme activity, thus enabling absorption to take place in the small intestine.
   

Crypts of Lieberkuhn:

• These are the simple tubular structure that occurs throughout the small intestine between the villi.
• The following cells are present in crypts of Lieberkuhn:

Note:

• The secretion of intestinal glands is called intestinal juice or succus entericus.
• The enzymes present in the succus entericus are maltase, isomaltase, sucrase, lactase, enterokinase, aminopeptidase, dipeptidase, nucleotidase, nucleosidase and intestinal lipase.
• The pH of succus entericus is 7.8

• These are the collections of large oval lymph tissues, located in the mucosa of the small intestine.
• These are mucosa-associated lymphoid tissues (MALT).
• These are abundant in the ileum.
• They form an important part of the immune system by monitoring intestinal bacteria populations and preventing the growth of pathogenic bacteria in the intestine.