Question

16 multiple choice 10 points what is the correct sequence for the layers in the walls of the alimentary canal from innermost to outermost? submucosa, mucosa, serosa, muscular layer mucosa, submucosa, muscular layer, serosa mucosa, muscular layer, serosa, submucosa serosa, muscular layer, mucosa, submucosa

Explanation:

The innermost layer of the alimentary canal wall is the mucosa which is in contact with the lumen. Next is the submucosa, then the muscular layer which helps in peristalsis, and the outermost is the serosa which is a protective layer.

Answer:

B. Mucosa, submucosa, muscular layer, serosa