Which of the following glands grows to the maximum size at puberty and them diminishes gradually

Options

A. Thymus
B. Pituitary
C. Thyroid
D. Adrenal.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks which gland reaches its maximum size during puberty and then gradually decreases in size.

2. **Identifying the Glands:**
The options provided are:
- Thymus
- Pituitary
- Thyroid
- Adrenal

3. **Analyzing Each Gland:**
- **Thymus:** This gland is known to grow significantly during childhood and reaches its peak size at puberty. It then gradually diminishes in size as a person ages.
- **Pituitary:** While the pituitary gland is crucial for hormone regulation, it does not show a significant decrease in size after puberty.
- **Thyroid:** The thyroid gland maintains its size throughout life and does not diminish after puberty.
- **Adrenal:** The adrenal glands are involved in stress response and hormone production but do not show a pattern of growth and subsequent reduction like the thymus.

4. **Conclusion:**
Based on the analysis, the thymus gland is the only gland that grows to its maximum size at puberty and then diminishes gradually. Therefore, the correct answer is the **thymus gland**.

**Final Answer: Thymus gland.**

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