Intestinal Juice - Succus Entericus

Intestinal juice is a digestive fluid secreted by the glands present in the small intestine. It contains various enzymes that help in the digestion of carbohydrates, proteins, and fats. Succus entericus is another name for intestinal juice.

Components of Intestinal Juice

Intestinal juice contains the following components:

1. Enzymes: It contains various enzymes such as:

- Proteases: These enzymes break down proteins into amino acids.
- Amylase: It breaks down carbohydrates into simple sugars.
- Lipase: It breaks down fats into fatty acids and glycerol.

2. Mucus: It helps in lubricating the intestinal walls and protects them from the corrosive action of digestive juices.

3. Bicarbonate ions: These ions neutralize the acid present in the chyme that enters the small intestine from the stomach.

4. Hormones: Intestinal juice also contains hormones such as secretin and cholecystokinin. Secretin stimulates the pancreas to release bicarbonate ions, while cholecystokinin stimulates the gall bladder to release bile.

Functions of Intestinal Juice

The functions of intestinal juice are:

- It helps in the digestion of carbohydrates, proteins, and fats.
- It neutralizes the acid present in the chyme from the stomach.
- It provides a suitable environment for the action of enzymes.
- It lubricates the intestinal walls and protects them from the corrosive action of digestive juices.

Conclusion

Succus entericus is the name given to the intestinal juice. It is a digestive fluid secreted by the glands present in the small intestine. It contains various enzymes that help in the digestion of carbohydrates, proteins, and fats. It also contains mucus, bicarbonate ions, and hormones that perform various functions in the digestive system.

Correct Option: B

Explanation:

Succus entericus is also known as intestinal juice. 

It is alkaline in nature and it counteracts the acidic nature of the chyme which enters the small intestine from the stomach. 

It is produced by the crypt of leiburkhun.

Since it has a counteracting effect, it protects the walls of the small intestine.