The secretions that lubricate the food so it moves easily through the digestive tract and also protects the epithelium are called .....

GASTROINTESTINAL PHYSIOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

The secretions that lubricate the food so it moves easily through the digestive tract and also protects the epithelium are called ____

A	mucus
B	water
C	digestive enzymes
D	hormones

Explanation:

Detailed explanation-1: -The secretion that lubricates the food so it moves easily through the digestive tract and also protects the epithelium is called what? This is called mucus. What is absorbed in the GI tract without being digested? This happens with vitamins.

Detailed explanation-2: -Gastric mucus is a glycoprotein that serves two purposes: the lubrication of food masses in order to facilitate movement within the stomach and the formation of a protective layer over the lining epithelium of the stomach cavity.

Detailed explanation-3: -Saliva moistens and lubricates the food, with the aid of a slippery substance called mucin, making swallowing easier as well as dissolving some of the food and allowing it to be tasted. The presence of a digestive enzyme, known as amylase, in saliva allows chemical digestion of starches to begin.

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