Name the endocrine gland that produces calcitonin and mention the role played by this hormone.

Explanation

**Step-by-Step Solution:**

1. **Identify the Endocrine Gland:**
- The endocrine gland that produces calcitonin is the **thyroid gland**. Specifically, calcitonin is produced by the **parafollicular cells** (also known as C cells) of the thyroid gland.

2. **Describe the Hormone:**
- Calcitonin is a **32 amino acid linear polypeptide hormone**. It plays a crucial role in regulating calcium levels in the body.

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