Acromegaly is due to hypersecretion of a hormone secreted from:

Options

A. Neurohypophysis
B. Adenohypophysis
C. Cells of Leydig
D. Pars intermedia

Answer

**Step-by-Step Solution:**

1. **Understanding Acromegaly**: Acromegaly is a disorder characterized by the excessive growth of bones and tissues, particularly noticeable in the face, hands, and feet. This condition arises due to the hypersecretion of a specific hormone.

2. **Identifying the Hormone**: The hormone responsible for acromegaly is the growth hormone (GH). This hormone plays a crucial role in growth and metabolism.

3. **Locating the Source of the Hormone**: The growth hormone is secreted by the pituitary gland. The pituitary gland has two main lobes:
- The **anterior lobe** (adenohypophysis)
- The **posterior lobe** (neurohypophysis)

4. **Analyzing the Options**:
- **Neurohypophysis**: This is the posterior lobe of the pituitary gland and does not secrete growth hormone.
- **Adenohypophysis**: This is the anterior lobe of the pituitary gland, which is responsible for the secretion of growth hormone.
- **Cells of Leydig**: These are found in the testes and secrete testosterone, not growth hormone.
- **Pars Intermedia**: This is a part of the pituitary gland but is not primarily responsible for the secretion of growth hormone.

5. **Conclusion**: Given that acromegaly is caused by the hypersecretion of growth hormone, and this hormone is secreted by the anterior lobe of the pituitary gland (adenohypophysis), the correct answer is **adenohypophysis**.

**Final Answer**: Acromegaly is due to hypersecretion of a hormone secreted from the **adenohypophysis**.

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