The innermost layer of the digestive tract is the:
A
Serosa membrane
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B
Mucosa membrane
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C
Submucosa membrane
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D
Lumen
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Solution
The correct option is B Mucosa membrane The membranes of the digestive tract from the inside to the outside are:
mucosa, submucosa, circular and longitudinal muscles, serosa.
So, the innermost membrane of the digestive tract is mucosa membrane.