Which of the following hormones is not secreted by anterior pituitary?

Options

A. Growth hormone
B. Follicle stimulating hormone
C. Oxytocin
D. Adrenocorticotrophic hormone

Explanation

To determine which hormone is not secreted by the anterior pituitary, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Pituitary Gland**:
- The pituitary gland is divided into two parts: the anterior pituitary (front) and the posterior pituitary (back).

2. **Identify the Hormones Secreted by the Anterior Pituitary**:
- Common hormones secreted by the anterior pituitary include:
- Growth Hormone (GH)
- Follicle Stimulating Hormone (FSH)
- Luteinizing Hormone (LH)
- Adrenocorticotropic Hormone (ACTH)
- Thyroid Stimulating Hormone (TSH)
- Prolactin (PRL)

3. **Identify the Hormones Secreted by the Posterior Pituitary**:
- The posterior pituitary primarily secretes:
- Oxytocin
- Antidiuretic Hormone (ADH, also known as vasopressin)

4. **Analyze the Given Options**:
- If the options include Growth Hormone, Follicle Stimulating Hormone, ACTH, and Oxytocin, we need to identify which one does not belong to the anterior pituitary.

5. **Conclusion**:
- Oxytocin is the hormone that is not secreted by the anterior pituitary; it is secreted by the posterior pituitary.

### Final Answer:
The hormone that is not secreted by the anterior pituitary is **Oxytocin**.

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