Which one is correctly matched?
`{:((a) "Pineal gland", - "Metabolism, Mental retardation"),((b) "Thymus", - "Mysthenia gravis"),( (c) "Thyroid", - "Anti inflammatory reaction"),( (d) "Pancrease", - "Prolonged hyperglycemia"):}`

Options

A. a,c
B. b,c
C. c,d
D. b,d

Answer

To determine which of the given pairs is correctly matched, we need to analyze each option based on the functions of the respective glands:

1. **Pineal gland**:
- The pineal gland is primarily responsible for the secretion of melatonin, which regulates sleep-wake cycles. It is not directly associated with metabolism or mental retardation. Therefore, this option is **incorrect**.

2. **Thymus**:
- The thymus gland plays a crucial role in the immune system, particularly in the development of T-cells. Myasthenia gravis is an autoimmune disorder that affects communication between nerves and muscles, and it has been associated with thymus dysfunction. Thus, this option is **correct**.

3. **Thyroid**:
- The thyroid gland regulates metabolism and is involved in various bodily functions through the secretion of thyroid hormones. It is not directly linked to anti-inflammatory reactions. Therefore, this option is **incorrect**.

4. **Pancreas**:
- The pancreas is involved in regulating blood glucose levels through the secretion of insulin and glucagon. Prolonged hyperglycemia is indeed a result of pancreatic dysfunction, particularly in diabetes. Thus, this option is **correct**.

Now, let's summarize the findings:
- (a) Pineal gland - Incorrect
- (b) Thymus - Correct
- (c) Thyroid - Incorrect
- (d) Pancreas - Correct

From the analysis, the correctly matched pair is option (b) "Thymus" with "Myasthenia gravis".

**Final Answer**: (b) "Thymus" - "Myasthenia gravis"

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