What are the basic layers of the wall of alimentary canal?
The partitions of the alimentary canal are made of 4 layers. These are as follows:(i) Serosa is the outermost layer of the human alimentary canal. It is made from a skinny layer of secretory epithelial cells, with a few connective tissues underneath. (ii) Muscularis is a skinny layer of clean muscle groups organized into an outer longitudinal layer and an internal round layer. (iii) Sub-mucosa is a layer of unfastened connective tissues, containing nerves, blood, and lymph vessels. It helps the mucosa. iv. Mucosa is the innermost lining of the lumen of the alimentary canal. It is specially concerned in absorption and secretion.
