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    Digestive Track Layers & Liver Failure

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    A lab worker accidently spills a tray of slides you have just prepared of the length of the digestive tract, beginning with the esophagus and ending at the rectum. How would you know that the first slide you picked up off the floor and checked with the microscope was from the stomach? Describe the four basic layers of the digestive track in your response. How did you rule out the other regions of the digestive track when you viewed the slide microscopically?

    A patient comes into the office in liver failure. What macromolecule (Protein, lipid, or carbohydrate) will be most effected? Why?

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    Solution Preview

    As the question states, the digestive tract has 4 layers: mucosa, submucosa, muscularis, and serosa.

    The mucosa is the inner lining of the GI tube. The mucosa itself has 3 areas. The innermost is epithelium. In the mouth, esophagus, and anal canal the cells are stratified squamous epithelium which means there are layers of flat cells. In the stomach and intestines, the epithelium is simple columnar which ...

    Solution Summary

    This solution explains the four layers of the digestive tract, as well as what macromolecules are most effected during liver failure.