Seminal plasma is rich in fructose, calcium and certain enzymes is secreted by

Options

A. Seminal vesicles
B. Prostate gland
C. Bulbourethral glands
D. All of the above

Answer

To answer the question regarding the secretion of seminal plasma, which is rich in fructose, calcium, and certain enzymes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Seminal Plasma**:
- Seminal plasma is the fluid part of semen that contains sperm and various substances that support sperm function.

2. **Identifying Components**:
- Seminal plasma is rich in fructose, calcium, and enzymes. Each of these components plays a crucial role in sperm motility and energy supply.

3. **Sources of Secretion**:
- **Seminal Vesicles**: These glands secrete a fluid that contains fructose, which provides energy to the sperm. They also contribute to the overall volume of semen.
- **Prostate Gland**: This gland secretes enzymes that help in the liquefaction of semen after ejaculation, facilitating sperm motility.
- **Bulbourethral Gland (Cowper's Gland)**: This gland secretes a clear fluid that contains calcium and other substances that help in lubrication and neutralizing acidity in the urethra.

4. **Conclusion**:
- All three glands (seminal vesicles, prostate gland, and bulbourethral gland) contribute to the composition of seminal plasma by secreting fructose, calcium, and enzymes.

5. **Final Answer**:
- Therefore, the correct answer to the question is that seminal plasma is secreted by all of the above-mentioned glands.