A person is having problem with calcium and phosphorus metablism in his body which one of the following glands may not be functionoing properly?

Options

A. Parotid
B. Pancreas
C. Adrenal cortes
D. Parathyroid

Explanation

To determine which gland may not be functioning properly in a person experiencing problems with calcium and phosphorus metabolism, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Calcium and Phosphorus Metabolism**:
- Calcium and phosphorus are essential minerals in the body that play crucial roles in various physiological processes, including bone health, muscle function, and nerve signaling.

2. **Identify the Hormones Involved**:
- The metabolism of calcium and phosphorus is primarily regulated by two hormones:
- **Calcitonin**: This hormone is secreted by the thyroid gland and helps lower blood calcium levels.
- **Parathyroid Hormone (PTH)**: This hormone is secreted by the parathyroid glands and increases blood calcium levels by promoting the release of calcium from bones, reabsorption in kidneys, and absorption in the intestines.

3. **Determine the Glands Responsible**:
- Since calcitonin and parathyroid hormone are responsible for regulating calcium and phosphorus levels, any dysfunction in the glands that produce these hormones may lead to metabolic issues.
- The **thyroid gland** (produces calcitonin) and the **parathyroid glands** (produce parathyroid hormone) are the key glands involved.

4. **Analyze the Options Given**:
- The options provided are:
1. Parotid gland
2. Pancreas
3. Adrenal cortex
4. Parathyroid gland
- Among these options, the **parathyroid gland** is directly involved in calcium and phosphorus metabolism.

5. **Conclude the Answer**:
- Since the question states that the person is having problems with calcium and phosphorus metabolism, it is likely that the **parathyroid gland** is not functioning properly.

### Final Answer:
The gland that may not be functioning properly is the **parathyroid gland**.

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