Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?

Options

A. Prolaction-cretinism
B. Parathyroid hormone-Tetany
C. Insulin-Diabetes insipidus
D. Relaxin-Gigantism

Answer

To solve the question "Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?", we will analyze each option provided and determine the correct match.

### Step-by-Step Solution:

1. **Identify the Hormones and Diseases**:
- We need to look at each option and identify the hormone and the disease associated with it.

2. **Evaluate the First Option**:
- **Prolactin and Cretinism**: Prolactin is responsible for stimulating lactation. Cretinism is a condition resulting from a deficiency of thyroid hormones, not prolactin. Therefore, this pair is incorrect.

3. **Evaluate the Second Option**:
- **Parathyroid Hormone and Tetanus**: Parathyroid hormone regulates calcium levels in the blood. Tetanus is associated with muscle spasms and can occur due to low calcium levels (hypocalcemia), which can result from a deficiency of parathyroid hormone. This pair appears to be correct.

4. **Evaluate the Third Option**:
- **Insulin and Diabetes Insipidus**: Insulin is a hormone that regulates blood sugar levels. Diabetes insipidus is related to the kidneys' inability to concentrate urine and is not caused by insulin deficiency. Instead, insulin deficiency leads to diabetes mellitus. Thus, this pair is incorrect.

5. **Evaluate the Fourth Option**:
- **Relaxin and Gigantism**: Relaxin is involved in muscle relaxation during childbirth. Gigantism is caused by an excess of growth hormone, not a deficiency. Therefore, this pair is also incorrect.

6. **Conclusion**:
- Based on the evaluations, the only correct pair is **Parathyroid Hormone and Tetanus**.

### Final Answer:
The correct match is **Parathyroid Hormone and Tetanus**.

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