What is the effect of GnRH produced by hypothalamus?

Options

A. Stimulates the synthesis and secretionof androgens
B. Stimulartes secretion of milk in mammary glands
C. Stimulartes fetal ejection reflex.
D. Stimulates synthesis of carbohydrates from non=carbohydrates in liver

Explanation

**Step-by-Step Solution:**

1. **Understanding GnRH**: GnRH stands for Gonadotropin-Releasing Hormone. It is a hormone produced by the hypothalamus.

*Hint: Remember that GnRH is a releasing hormone that plays a crucial role in the regulation of reproductive hormones.*

2. **Function of GnRH**: The primary function of GnRH is to stimulate the anterior lobe of the pituitary gland.

*Hint: Think about how hormones interact with glands in the endocrine system, particularly the hypothalamus and pituitary gland.*

3. **Effects on the Pituitary Gland**: When GnRH stimulates the anterior pituitary, it leads to the secretion of two important hormones: Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH).

*Hint: Consider the relationship between GnRH and the hormones it influences in the pituitary gland.*

4. **Role of LH and FSH**: LH and FSH are crucial for the reproductive system. In males, LH specifically stimulates Leydig cells in the testes to produce androgens, which are male sex hormones.

*Hint: Focus on the specific actions of LH and FSH in the male reproductive system.*

5. **Conclusion**: Therefore, the main effect of GnRH produced by the hypothalamus is to stimulate the synthesis and secretion of androgens through the action of LH.

*Hint: Summarize the pathway: GnRH → Anterior Pituitary → LH → Androgens.*

**Final Answer**: The effect of GnRH produced by the hypothalamus is to stimulate the synthesis and secretion of androgens.

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