Stratified squamous non-keratinized epithelium is present in the lining of

Options

A. Buccal cavity, oesophagus, cornea of eye
B. Skin, hair, horn, nail
C. Small pancreatic ducts, thyroid follicles, ovary
D. Intestine, stomach, gall bladder

Answer

To answer the question regarding where stratified squamous non-keratinized epithelium is present, we can break down the information step by step.

### Step-by-Step Solution:

1. **Understanding Stratified Squamous Non-Keratinized Epithelium**:
- Stratified squamous epithelium consists of multiple layers of flat (squamous) cells. The term "non-keratinized" indicates that these cells do not have a layer of keratin, which is a protein that provides protection and is found in keratinized epithelium.

2. **Identifying Locations of Stratified Squamous Non-Keratinized Epithelium**:
- This type of epithelium is typically found in areas of the body that require protection but are not exposed to the external environment in the same way that skin is.

3. **Analyzing the Options Given**:
- **Option 1**: Buccal cavity, esophagus, cornea of the eye.
- These areas are all lined with non-keratinized stratified squamous epithelium because they are moist and not exposed directly to the environment.
- **Option 2**: Skin, hair, nails.
- This option is incorrect because these structures are covered by keratinized stratified squamous epithelium.
- **Option 3**: Small pancreatic duct, thyroid follicles, ovary.
- These do not contain stratified squamous non-keratinized epithelium.
- **Option 4**: Intestine, stomach, gallbladder.
- These structures are lined with different types of epithelium, primarily columnar epithelium.

4. **Conclusion**:
- Based on the analysis, the correct answer is that stratified squamous non-keratinized epithelium is present in the lining of the **buccal cavity, esophagus, and cornea of the eye**.

### Final Answer:
Stratified squamous non-keratinized epithelium is present in the lining of the buccal cavity, esophagus, and cornea of the eye.

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