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What is dental caries and dental plaque? How can one avoid it?

Important Questions on Digestion and Absorption

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Study the following diagram of human tongue and identify the part I, II, and III

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Which ONE of the following is NOT a function of the small intestine?
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Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.
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Which of the following terms describe human dentition?
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The primary dentition in human differs from permanent dentition in not having one of the following types of teeth:
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Which one of the following glands does not secrete saliva?
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Which of the following guards the opening of the hepatopancreatic duct into the duodenum?
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The proteolytic enzyme rennin is found in:
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Identify the correct statement with reference to human digestive system.
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In a T. S. of the human small intestine, serosa is the outermost layer and is made up of a thin __A__. Muscularis is formed by the smooth muscles arranged outer __B__ and inner __C__. Sub-mucosa is formed by the __D__. Mucosa is the innermost layer made of __E__.
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Discuss the basic structure of the alimentary canal wall and explain differences found in the various regions of the alimentary canal.
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Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?
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Which of the following statements is not correct?
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The first enzyme that the food encounters in human digestive system is
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In the digestive system, the pH of the stomach and the intestine, respectively are:
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Following are different layers in the wall of the alimentary canal of man
I) Longitudinal muscles
II) Mucosa
III) Serosa
IV) Circular muscles
V) Submucosa

Arrange them in the correct sequence from the outer to the inner side

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Intrinsic factor that helps in the absorption of vitamin B12 is secreted by:
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The crypts of Lieberkuhn are found in which one of the following parts of the human digestive tract?
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Match the following structures with their respective location in organs:
  Column – I   Column – II
(a) Crypts of Lieberkuhn (i) Pancreas
(b) Glisson’s capsule (ii) Duodenum
(c) Islets of Langerhans (iii) Small intestine
(d) Brunner’s Glands (iv) Liver

Select the correct option.
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A baby boy aged two years is admitted to playing school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?