In the wall of alimentary canal which is/are is true sequence from outer to inner

Options

A. Serosa, longitudinal muscle, mucosa, sub mucosa
B. Mucosa, serosa, long muscle
C. Serosa, long muscle, circular, sub-mucosa, mucosa
D. Serosa,long muscle, circular, sub-mucosa, mucosa

Answer

C

Explanation

(c) The wall of alimentary canal is made up of four basic layers. First of all there is serosa which is a thin membranous convering around oesophagus. Then there is muscle layer of longitudinal muscles and inner layer of circular muscles . Last there is submucosa which contains a few oesophageal glands. Then comes mucosa which have several layers of flattened cells.