Which one of the following does not constitute a part of single uriniferous tubule?

Options

A. Distal convoluted tubule
B. Collecting duct
C. Bowman's capsule
D. Loop of Henle

Explanation

To solve the question "Which one of the following does not constitute a part of a single uriniferous tubule?", we will analyze each of the provided options to determine their association with the uriniferous tubule.

### Step-by-Step Solution:

1. **Understand the Structure of the Uriniferous Tubule**:
- The uriniferous tubule, also known as the nephron, is the functional unit of the kidney. It consists of several parts including the Bowman's capsule, proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct.

2. **Evaluate Each Option**:
- **Option A: Distal Convoluted Tubule**:
- The distal convoluted tubule is indeed a part of the uriniferous tubule. Therefore, this option is incorrect.

- **Option B: Collecting Duct**:
- The collecting duct is not considered a part of a single uriniferous tubule (nephron). It collects urine from multiple nephrons. Thus, this option is correct.

- **Option C: Bowman's Capsule**:
- Bowman's capsule is the initial part of the nephron where filtration occurs. It is part of the uriniferous tubule. Therefore, this option is incorrect.

- **Option D: Loop of Henle**:
- The loop of Henle is also a part of the nephron, playing a crucial role in concentrating urine. Hence, this option is incorrect.

3. **Conclusion**:
- After evaluating all the options, the only structure that does not constitute a part of a single uriniferous tubule is the **collecting duct**. Therefore, the correct answer is **Option B: Collecting Duct**.

### Final Answer:
**Option B: Collecting Duct**