How many of the following hormones were synthesised and secreted by pituitary gland ?
* growth hormone
* prolactin
* thyroxine
* aldosterone
* luteinizing hormone
* follicle - stimulating hormone

Options

A. Two
B. Four
C. Six
D. One

Answer

To solve the question of how many hormones are synthesized and secreted by the pituitary gland from the given list, we will analyze each hormone one by one.

1. **Growth Hormone (GH)**:
- This hormone is indeed synthesized and secreted by the pituitary gland. It is responsible for stimulating growth, cell reproduction, and cell regeneration.

2. **Prolactin (PRL)**:
- Prolactin is also synthesized and secreted by the pituitary gland. It plays a crucial role in lactation, helping to produce milk in nursing mothers.

3. **Thyroxine (T4)**:
- Thyroxine is not produced by the pituitary gland; it is synthesized and secreted by the thyroid gland. Therefore, this hormone does not count.

4. **Aldosterone**:
- Aldosterone is a hormone produced by the adrenal glands, not the pituitary gland. Thus, this hormone does not count either.

5. **Luteinizing Hormone (LH)**:
- Luteinizing hormone is produced and secreted by the pituitary gland. It is essential for regulating the function of the ovaries in females and the testes in males.

6. **Follicle-Stimulating Hormone (FSH)**:
- Follicle-stimulating hormone is also synthesized and secreted by the pituitary gland. It is important for the growth and maturation of ovarian follicles in females and spermatogenesis in males.

Now, let's summarize the findings:
- Hormones synthesized and secreted by the pituitary gland:
- Growth Hormone (GH)
- Prolactin (PRL)
- Luteinizing Hormone (LH)
- Follicle-Stimulating Hormone (FSH)

Total count of hormones produced by the pituitary gland = 4.

Therefore, the answer to the question is **4**.