Which type of epithelium is normally found in the esophagus?
  1. Nonkeratinized stratified squamous
  2. Columnar
  3. Keratinized stratified squamous
  4. Cuboidal
Explanation
Answer: A - In normal conditions, the esophagus is lined with nonkeratinized stratified squamous epithelium. This type of epithelium is found in areas of the body that are continually kept moist. It is a protective layer, which turns over rapidly.
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