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Question

Innermost layer of mucosa is made up of columnar epithelium except :-

A
Oesophagus
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B
Duodenum
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C
Intestine
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D
Stomach
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Solution

The correct option is C Oesophagus
  • The mucosa (also known as mucous membrane) is the innermost layer of tissue. It’s a moist epithelial membrane that lines the alimentary canal lumen from mouth to the anus.
  • Digestive mucosa is made up of three sublayers and the Innermost layer of the mucosa is made up of columnar epithelium except in the mouth, esophagus, and anus where it’s stratified squamous.
  • Hence the Innermost layer of the mucosa is made up of columnar epithelium except for Oesopjhagus.
  • So, the correct answer is 'Oesophagus'.

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