A patient has very little saliva because of a salivary gland disorder. Which digestive function is most directly reduced?
Correct answer: A. Initial starch digestion and lubrication of food
- A. Initial starch digestion and lubrication of food
- B. Protein digestion and absorption of vitamin B12
- C. Fat emulsification and storage of bile
- D. Water absorption and formation of faeces
Explanation
Saliva moistens food and contains salivary amylase, which begins starch digestion. Vitamin B12 absorption occurs in the ileum, bile handles fat digestion, and faeces are formed mainly in the large intestine.
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About Digestive System
The digestive system covers the structure and functions of the alimentary canal from mouth to anus, along with the liver, gallbladder and pancreas. It explains mechanical and chemical digestion, the action of major enzymes, absorption through intestinal villi, and how digestion differs from absorption and assimilation.
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