Question

Succus entericus is also called as
A)Gastric juice
B)intestinal juice
C)Bile juice
D)Saliva

Answer 1

Hint: It is a fluid secreted in the small intestine in a very small quantity and is variable in the constitution. Various enzymes are also present in the fluid with mucus, like Erepsin, Lipase, Lactase, Enterokinase, and Amylase.

Complete answer:
Intestinal juice is also known as success entericus, it is a watery secretion of clear to pale yellow from the glands which lines the small intestine and large intestine walls.
-Constitution of intestinal juice is - the brush border cells of the mucosa secreted with the secretions of the goblet cells.
-Hydrochloric acid coming from the stomach is neutralized by intestinal juice and releases the gastrointestinal hormones into the bloodstream.
-Digestive enzymes are also contained facilitating the digestion and absorption of food. Under the influence of hormones, interstitial juice is secreted. Through the presence of food, vagus nerve and mechanical stimulation are produced.
-Composition of the Succus entericus is water, mucoproteins, and hydrogen carbonate ions.

Additional information
Gastric juice - it forms within the stomach lining which is a digestive fluid. It is a mixture of many substances like water hydrochloric acid, many electrolytes like sodium, potassium, calcium, phosphate, sulphate, and bicarbonate. Organic substances like mucus, pepsin, and proteins.
Because of hydrochloric acid, this juice is very acidic and is rich in enzymes.
Bile juice - a fluid is released by the liver and stored in the gallbladder, health in the digestion. breakdown of fats into fatty acids is taken place by the bile juice into the body by the digestive tract. It is composed of bile acids and salts, phospholipids, cholesterol pigments, water, and some electrolytes. These chemicals help in keeping the solution alkaline with pH 7 to 8.
Saliva - produced by the salivary glands in the mouth of animals like humans. It contains water about 98% along with many important substances like antibacterial compounds, electrolytes, mucus, and various enzymes. It is an extracellular watery substance.

So, the correct answer is, "Intestinal fluid".

Note:
-In the duodenum wall, an alkaline substance produced by the glands is the succus entericus and generally comprises water, mucoproteins, and carbonate hydrogen ions.
-It is secreted in a very small quantity in the small intestine and also known as intestinal juice. It is produced by the crypts of lieberkuhn.