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Question

Succus entericus is also called

A
gastric juice
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B
intestine juice
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C
bile juice
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D
saliva
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Solution

The correct option is B intestine juice
Succus entericus, also called intestinal juice, is a fluid that is secreted in small quantity in the small intestine. The secretions of the brush border cell of the mucosa along with the secretions of the goblet cells constitute this intestinal juice. It is highly variable in constitution, and contains various enzymes (such as pepsin, lipase, lactase, invertase, enterokinase, dipeptidases, nucleosidases and maltase) and mucus.

Gastric juice is a variable mixture of water, hydrochloric acid, electrolytes (sodium, potassium, calcium, phosphate, sulphate, and bicarbonate), and organic substances (mucus, pepsins, and protein). This juice is highly acidic because of its hydrochloric acid content, and it is rich in enzymes.

Bile juice is a digestive fluid produced by the liver. It is stored and concentrated in the gallbladder. Its main function is to convert fats in food into fatty acids, which are absorbed in the gut.

Saliva is an extracellular fluid produced and secreted by salivary glands in the mouth. In humans, saliva is 98% water plus electrolytes, mucus, white blood cells, epithelial cells, enzymes, antimicrobial agents such as secretory IgA, and lysozymes.

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