Esophagus

 

Notice the 3 layers of the esophagus.

    Mucosa

    Submucosa

    Muscularis

 

The esophagus has only 3 layers instead of the typical 4 because it lacks a serosa.

 

This is a slide of the esophagus.  Note the dark purple layers from the middle to the top of the slide.  This is the mucosa.  Can you see the layers of stratified squamous epithelium?

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