The renal tubular of the uriniferous tubule is mainly made up to .... epithelium.

Options

A. Squamous
B. Cuboidal
C. Columnar
D. Ciliated

Answer

To determine the type of epithelium that makes up the renal tubule of the uriniferous tubule, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the type of epithelium that constitutes the renal tubule of the uriniferous tubule.

2. **Identifying Types of Epithelium**: There are various types of epithelial tissues, but they can be broadly categorized into two groups: simple epithelium and compound epithelium. Simple epithelium consists of a single layer of cells, while compound epithelium consists of multiple layers.

3. **Types of Simple Epithelium**: Simple epithelium can be further classified into three types:
- **Squamous Epithelium**: Composed of a single layer of flattened cells.
- **Cuboidal Epithelium**: Composed of a single layer of cube-shaped cells.
- **Columnar Epithelium**: Composed of a single layer of tall, slender cells.

4. **Function and Location of Each Type**:
- **Squamous Epithelium**: Found in areas where diffusion occurs, such as the walls of blood vessels and air sacs of the lungs.
- **Cuboidal Epithelium**: Typically found in glands and the tubular parts of nephrons in the kidneys, where secretion and absorption occur.
- **Columnar Epithelium**: Found in the lining of the stomach and intestines, also involved in secretion and absorption.

5. **Focusing on the Renal Tubule**: The renal tubule is part of the nephron in the kidney, which is responsible for filtering blood and forming urine. The epithelial cells in the renal tubules need to facilitate processes like secretion and absorption.

6. **Conclusion**: Given that the renal tubule is primarily involved in secretion and absorption, and considering that cuboidal epithelium is specifically noted for being present in the tubular parts of nephrons, we can conclude that the renal tubule of the uriniferous tubule is mainly made up of **cuboidal epithelium**.

### Final Answer:
The renal tubule of the uriniferous tubule is mainly made up of **cuboidal epithelium**.

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