Growth hormone is produced by

Options

A. Thyroid
B. Neurohypophysis
C. Intermediate hypophysis
D. Adenohypophysis

Answer

### Step-by-Step Solution:

1. **Identify the Source of Growth Hormone**:
- Growth hormone is produced by the pituitary gland, specifically by a part of it known as the adenohypophysis.

2. **Define the Adenohypophysis**:
- The adenohypophysis is the anterior lobe of the pituitary gland, which is responsible for producing several hormones, including growth hormone.

3. **Understand the Function of Growth Hormone**:
- Growth hormone, also known as somatotropin or somatotrophic hormone, plays a crucial role in regulating body growth. It promotes protein synthesis, enhances the absorption of calcium in the intestines, and conserves glucose.

4. **Explain the Role in Body Growth**:
- Growth hormone aids in the synthesis and deposition of proteins, which are essential for growth. It also stimulates the growth of long bones and other parts of the skeleton.

5. **Conclude with the Correct Answer**:
- Therefore, the correct answer to the question "Growth hormone is produced by" is the adenohypophysis (option D).