Functions of male sex accessory ducts and glands are maintained by

Options

A. testosterone
B. oestrogens
C. progesterone
D. none of the above

Answer

To answer the question "Functions of male sex accessory ducts and glands are maintained by?", we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Understanding Male Reproductive System**: The male reproductive system includes various structures such as the testes, seminal vesicles, prostate gland, and accessory ducts (like the vas deferens). These structures play crucial roles in the production and transport of sperm.

**Hint**: Familiarize yourself with the components of the male reproductive system and their functions.

2. **Role of Hormones**: The functions of the male reproductive system, including the accessory ducts and glands, are regulated by hormones. The key hormones involved are gonadotropin-releasing hormone (GnRH), luteinizing hormone (LH), and follicle-stimulating hormone (FSH).

**Hint**: Remember the key hormones and their sources: GnRH from the hypothalamus, LH and FSH from the pituitary gland.

3. **Spermatogenesis**: At puberty, GnRH stimulates the pituitary gland to release LH and FSH. These hormones are essential for the process of spermatogenesis, which is the production of sperm.

**Hint**: Understand the timeline of spermatogenesis and the hormonal triggers that initiate this process.

4. **Action of Luteinizing Hormone (LH)**: LH specifically acts on Leydig cells located in the interstitial spaces of the seminiferous tubules. This action leads to the production of testosterone.

**Hint**: Focus on the specific target of LH and its role in testosterone production.

5. **Role of Testosterone**: Testosterone is the primary male sex hormone (androgen) that maintains the functions of the male accessory ducts and glands. It is responsible for the development and maintenance of male secondary sexual characteristics and the proper functioning of the reproductive system.

**Hint**: Remember that testosterone is crucial for both the development of male traits and the functioning of reproductive structures.

6. **Conclusion**: Therefore, the functions of male sex accessory ducts and glands are maintained by testosterone, which is produced as a result of the action of LH on Leydig cells.

**Final Answer**: The functions of male sex accessory ducts and glands are maintained by testosterone.

### Summary of the Answer:
The functions of male sex accessory ducts and glands are maintained by testosterone, which is produced under the influence of luteinizing hormone (LH).