The organ which was considered vestigial till recently but now confirmed to be endorcine gland is

Options

A. Thymus
B. Pancreas
C. pineal
D. Pituitary

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:** The question asks for an organ that was previously considered vestigial but has now been confirmed to function as an endocrine gland.

2. **Analyzing the Options:**
- **Thymus:** This organ is primarily involved in the immune system and is not considered vestigial.
- **Pancreas:** The pancreas is a heterocrine gland, meaning it has both endocrine (insulin secretion) and exocrine functions (enzyme secretion). It was never considered vestigial.
- **Pineal Gland:** This gland was historically thought to be vestigial but is now recognized as an endocrine gland because it secretes melatonin, which regulates sleep-wake cycles.
- **Pituitary Gland:** Known as the master gland, it regulates other glands and is not considered vestigial.

3. **Identifying the Correct Answer:** Among the options, the pineal gland is the one that fits the criteria of being previously considered vestigial and is now confirmed to be an endocrine gland.

4. **Conclusion:** The answer to the question is the **Pineal Gland**.

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