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  4. In the wall of alimentary canal, what is the actual sequence from outer to inner?

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Q. In the wall of alimentary canal, what is the actual sequence from outer to inner?

Digestion and Absorption

Solution:

First of all, there is serosa, which is a thin membranous covering around oesophagus. Then, there is muscle layer-outer layer of longitudinal muscles and inner layer of circular muscles. Last, there is submucosa, which contains glands. Then comes mucosa, which has several layers of flattened cells.