Question

Non-keratinized stratified squamous epithelium is found in

• A. Epidermis of skin of land vertebrates
• B. Oral cavity and pharynx
• C. Vagina and cervix
• D. Both (2) and (3)

Answer 1

The correct option is D

Both (2) and (3)

The correct option is D:

Explanation of correct option:

1. Squamous stratified epithelium contains a waterproof protein which is known as keratin, and when keratin replaces the cytoplasm, this process is called keratinization.
2. And if keratin is not formed it is called the non-keratinized epithelium.
3. A non-keratinized epithelium forms the lining of the oral cavity, cheeks, esophagus, vagina, pharynx, cervix, etc.

Explanation of incorrect option:

Option A:

1. Epidermis is the outermost layer of the organ.
2. The epidermis of the skin of vertebrates contains the stratified epithelium which covers the outermost body parts and it is the outer lining of the body tract.

Final Answer: Thus, Non-keratinized stratified squamous epithelium is found in the Oral cavity, Pharynx, Vagina, and Cervix.