Select the total number of false statements from the following 

1) Muscularis is formed by smooth muscles usually arranged into an inner circular and an outer longitudinal layer.

2) Submucosal layer is formed of loose connective tissues containing nerves, blood and lymph vessels.

3) Serosa is the outermost layer and is made up of a thin mesothelium (epithelium of visceral organs).

4) The innermost layer lining the lumen of the alimentary canal is the mucosa.

5) Mucosal epithelium has goblet cells which secrete mucus that helps in lubrication.