The specialised epithelial cells called podocytes are

Options

A. the squamous epithelial cells of glomerulus of nephron
B. the cuboidal epithelial cells of glomerulus of nephron
C. the cuboidal epithelial cells of Bowman's capsule of nephron
D. the squamous epithelial cells of Bowman's capsule of nephron

Answer

To solve the question regarding the specialized epithelial cells called podocytes, we will analyze the options provided and determine which one correctly identifies podocytes.

### Step-by-Step Solution:

1. **Understanding Podocytes**:
- Podocytes are specialized epithelial cells found in the kidneys. They play a crucial role in the filtration process within the glomerulus of the nephron.

2. **Function of Podocytes**:
- Their primary function is to prevent plasma proteins from entering the urinary ultrafiltrate during the filtration process. This is essential for maintaining protein levels in the blood.

3. **Analyzing the Options**:
- **Option 1**: Squamous epithelial cells of the glomerulus of nephron.
- This option is incorrect. While podocytes are indeed squamous, they are not merely the squamous epithelial cells of the glomerulus; they have a specific structure and function.

- **Option 2**: Cuboidal epithelial cells of the glomerulus of nephron.
- This option is also incorrect. Podocytes are not cuboidal; they are specialized squamous cells.

- **Option 3**: Cuboidal epithelial cells of the Bowman’s capsule of nephron.
- This option is incorrect as well. The cells in Bowman’s capsule are not cuboidal; they are also squamous, and podocytes are specifically associated with the Bowman’s capsule but are not cuboidal.

- **Option 4**: Squamous epithelial cells of the Bowman’s capsule of nephron.
- This option is correct. Podocytes are indeed specialized squamous epithelial cells that are part of the Bowman’s capsule and are involved in the filtration process.

4. **Conclusion**:
- The correct answer is **Option 4: Squamous epithelial cells of the Bowman’s capsule of nephron**.