Secretion of GnRH would lead to

Options

A. secretion of testosterone leading to mammary gland development
B. release of prolactin leading to milk production in mammary glands
C. secretion of LH and FSH leading to follicle development
D. All of the above

Answer

To answer the question "Secretion of GnRH would lead to," we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Source of GnRH**:
- GnRH stands for Gonadotropin-Releasing Hormone, which is secreted by the hypothalamus in the brain.

2. **Function of GnRH**:
- The primary role of GnRH is to stimulate the anterior pituitary gland to release two key hormones: Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH).

3. **Effects of LH and FSH**:
- LH and FSH are crucial for reproductive processes.
- LH is involved in stimulating testosterone production in males and ovulation in females.
- FSH is essential for the development of ovarian follicles in females and spermatogenesis in males.

4. **Evaluate the Options**:
- **Option 1**: Secretion of testosterone leading to mammary gland development - Incorrect, as testosterone is a male hormone and does not lead to mammary gland development.
- **Option 2**: Release of prolactin leading to milk production in mammary glands - Incorrect, as prolactin is regulated by a different hormone and is not directly stimulated by GnRH.
- **Option 3**: Secretion of LH and FSH leading to follicle development - Correct, as this is a direct effect of GnRH.
- **Option 4**: All of the above - Incorrect, as not all options are true.

5. **Conclusion**:
- The correct answer is **Option 3**: Secretion of LH and FSH leading to follicle development.