Which of the following hormones is not secreted by the hypothalamus ?

Options

A. Growth hormone - releasing hormone
B. Oxytocin
C. Antidiuretic hormone
D. Follicle stimulating hormone

Answer

To solve the question "Which of the following hormones is not secreted by the hypothalamus?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of the Hypothalamus**: The hypothalamus is a region of the brain that plays a crucial role in hormone production and regulation. It produces several hormones that control various physiological functions.

2. **Identify the Types of Hormones Secreted by the Hypothalamus**: The hypothalamus secretes two main types of hormones:
- **Releasing Hormones**: These stimulate the release of hormones from the anterior pituitary gland.
- **Inhibiting Hormones**: These inhibit the release of hormones from the anterior pituitary gland.

3. **Review the Hormones Listed in the Options**:
- **a. Growth Hormone Releasing Hormone (GHRH)**: This is a releasing hormone secreted by the hypothalamus that stimulates the release of growth hormone from the pituitary gland.
- **b. Oxytocin**: This hormone is produced in the hypothalamus and released by the posterior pituitary gland.
- **c. Antidiuretic Hormone (ADH)**: Also known as vasopressin, this hormone is produced in the hypothalamus and released by the posterior pituitary gland.
- **d. Follicle Stimulating Hormone (FSH)**: This hormone is not produced by the hypothalamus; it is secreted by the anterior pituitary gland.

4. **Determine the Correct Answer**: Based on the analysis, the hormone that is not secreted by the hypothalamus is **d. Follicle Stimulating Hormone (FSH)**.

### Final Answer:
The hormone that is not secreted by the hypothalamus is **d. Follicle Stimulating Hormone (FSH)**.

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