Question

The crypts of lieberkuhn secrete
(a) Gastrin
(b) Rennin
(c) Cholecystokinin
(d) Succus entericus

Answer 1

The digestive juice produced by the glands of the duodenal region is alkaline in nature and helps in the digestion of various food particles by breaking the large particle into smaller and simple particles. It includes a mixture of enzymes.

Complete answer:
The crypts of lieberkuhn secrete intestinal juice. Intestinal juice is also known as success entericus, it is a watery secretion of clear to pale yellow from the glands which line the small intestine and large intestine walls. The secretion of the goblet cells along with the mucus secreted from the intestinal wall will constitute the intestinal juice. The intestinal juice along with the gastrointestinal hormones that are found in the bloodstream will help in neutralizing the amount of hydrochloric acid produced in the stomach.
The digestion and absorption of food are done with the help of the digestive enzymes. The intestinal juice is secreted with the help of hormones. The production of mechanical stimulations and the vagus nerve is done through the presence of food. The Succus entericus comprises various substances that include mucoproteins, water, and hydrogen carbonate ions.

Additional information
-The gastric acid is secreted by the parietal cells that are stimulated by the hormone Gastrin of the stomach. When the blood glucose level increases it is regulated with the help of the Insulin.
-Rennin is the enzyme found mostly in the stomach of the ruminant animals. It helps in the production of cheese and to coagulate the milk and form curd. It acts as the milk digesting enzymes and sometimes protein-digesting enzymes as well thus resulting in the formation of casein by transforming the milk protein.
-Cholecystokinin is the gastrointestinal hormone and is structurally a peptide hormone that helps in the protein and fat digestion.

So, the correct answer is ‘Succus entericus’.

Note:
The adult stem cells present in the intestinal glands are called intestinal stem cells which are utilized to understand the stem cell biology and to produce the intestinal organs with the help of these stem cells. Cryptis is a disease that occurs due to the inflammation of crypts and when it becomes severe then it will lead to the cause of crypt abscess.