Simple cuboidal epithelium lines all the following structures except the

Options

A. ovary
B. pancreatic ducts
C. thyroid follicles
D. Fallopian tube

Explanation

To determine which structure is not lined by simple cuboidal epithelium, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Function of Simple Cuboidal Epithelium**:
- Simple cuboidal epithelium is primarily involved in absorption, secretion, and the release of substances. It is commonly found in glands and ducts.

2. **Identify Structures Lined by Simple Cuboidal Epithelium**:
- Common locations for simple cuboidal epithelium include:
- Salivary glands
- Kidney tubules
- Pancreatic ducts
- Thyroid follicles

3. **Analyze the Given Structures**:
- The question lists four structures:
- Ovary
- Pancreatic duct
- Thyroid follicles
- Fallopian tube

4. **Determine the Epithelium in Each Structure**:
- **Ovary**: Lined by cuboidal epithelium.
- **Pancreatic duct**: Lined by cuboidal epithelium.
- **Thyroid follicles**: Lined by cuboidal epithelium.
- **Fallopian tube**: This structure is primarily involved in the transport of the egg and is lined by ciliated columnar epithelium, not cuboidal epithelium.

5. **Conclusion**:
- The structure that is not lined by simple cuboidal epithelium is the **Fallopian tube**.

### Final Answer:
The simple cuboidal epithelium lines all the following structures except the **Fallopian tube**.

---