A lack of iodine in the body causes this gland to swell, leading to a deficiency disease called ______

Options

A. Growth disorder
B. Goitre
C. Diabetes
D. Pancreatic cancer

Answer

**Step-by-Step Solution:**

1. **Identify the Gland Affected by Iodine Deficiency**: The thyroid gland is the gland that is affected when there is a lack of iodine in the body.

2. **Understand the Role of Iodine**: Iodine is essential for the production of thyroid hormones, specifically thyroxine. Without enough iodine, the thyroid cannot produce these hormones effectively.

3. **Recognize the Consequence of Iodine Deficiency**: When the thyroid gland cannot produce enough thyroxine due to iodine deficiency, it can lead to an increase in the size of the gland, causing it to swell.

4. **Name the Deficiency Disease**: The swelling of the thyroid gland due to iodine deficiency is known as "goiter."

5. **Final Answer**: Therefore, the deficiency disease caused by a lack of iodine in the body is called **goiter**.

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