HISTOLOGY
DIGESTIVE SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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mouth
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esophagus
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stomach
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small intestine
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Detailed explanation-1: -Digestion begins in the mouth. The food is ground up by the teeth and moistened with saliva to make it easy to swallow. Saliva also has a special chemical, called an enzyme, which starts breaking down carbohydrates into sugars.
Detailed explanation-2: -An enzyme called salivary amylase is found in the saliva of our mouth which breaks down large molecules of carbohydrates into smaller ones. These are easily and quickly absorbed by the intestine when they reach there. Thus, when we chew the food properly, it is digested well.
Detailed explanation-3: -Mechanical digestion in the oral cavity consists of grinding of food into smaller pieces by the teeth, a process called mastication. Chemical digestion in the mouth is minor but consists of salivary amylase (ptyalin, or alpha-amylase) and lingual lipase, both contained in the saliva.
Detailed explanation-4: -The digestive process begins in the mouth when a person chews. Additionally, saliva includes an enzyme that initiates the breakdown of food’s carbohydrates. Saliva facilitates meal digestion and helps with the breakdown of carbohydrates.