Esophagus - histology slide

This histology slide is from the esophagus. There are four layers of tissue to the espophagus: mucosa, submucosa, muscularis externa, and adventitia. Notice the non keratinized stratified squamous epithelium of the mucosa. The submucosa and muscularis externa are also prominent. The adventitia is not visible on this section.

Histology image courtesy of Corel Professional Photos Histology CD.