A) serosa, longitudinal muscle, mucosa, submucosa
B) mucosa, serosa, long muscle
C) serosa, long muscle, circular, submucosa, mucosa
D) serosa, long muscle, submucosa, mucosa
Correct Answer: C
Solution :
In the wall of alimentary canal, order of layers, from outside to inner is serosa, longitudinal muscle, circular muscle, submucosa and mucosa. Serosa is a serous membrane lined by squamous epithelium and formed by areolar connective dssue. Circular and longitudinal muscles form muscularis layer of alimentary canal. Sub mucosa is made up of areolar connective tissue but white fibres are more. Bruner's gland are present in submucosa layer. Mucosa made up of several layers of flattened cells.
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