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**: The thymus gland is involved in the immune system and has always been recognized as a functional gland. Therefore, it cannot be the answer.
- **Pancreas**: The pancreas functions as both an endocrine and exocrine gland. It produces insulin (endocrine function) and digestive enzymes (exocrine function). Thus, it has not been considered vestigial, making it an incorrect option.
- **Pineal Gland**: The pineal gland is located at the dorsal side of the forebrain and secretes melatonin and serotonin. It was previously thought to be vestigial due to its small size, but it is now recognized as an endocrine gland. This makes it a strong candidate for the answer.
- **Pituitary Gland**: Known as the master gland, the pituitary gland regulates other endocrine glands and secretes multiple hormones. It has always been acknowledged as a functional gland, so it is not the correct answer.

3. **Conclusion**: After analyzing all the options, the organ that was considered vestigial until recently but is now confirmed to be an endocrine gland is the **Pineal Gland**.

**Final Answer**: Pineal Gland

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