Secretions of all these glands constitute the seminal plasma except :-

Options

A. Bulbourethral gland
B. Prostate gland
C. Seminal vesicle
D. Bartholin gland

Answer

To answer the question regarding which gland does not contribute to the formation of seminal plasma, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Seminal Plasma Composition**:
- Seminal plasma is primarily composed of secretions from various glands. It consists of about 70% fluid from the seminal vesicles and prostate gland, and about 30% sperm cells.

2. **Identify the Glands Contributing to Seminal Plasma**:
- **Bulbo-Urethral Gland**: This gland contributes to seminal plasma by adding fluid that increases the solubility of semen.
- **Prostate Gland**: This gland produces secretions that contain enzymes and fluids that are crucial for lubrication and the overall composition of seminal plasma.
- **Seminal Vesicles**: These glands are responsible for producing the majority of the fluid that constitutes seminal plasma, providing nutrients and enzymes.

3. **Identify the Gland Not Contributing to Seminal Plasma**:
- **Bartholene Gland**: This gland does not contribute to seminal plasma. Instead, it is involved in producing vaginal lubrication, which is important for female reproductive health but not part of seminal plasma.

4. **Conclusion**:
- Based on the functions of the glands, we conclude that the Bartholene gland is the exception and does not constitute the seminal plasma.

### Final Answer:
The gland that does not contribute to the formation of seminal plasma is the **Bartholene gland**.

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